Counter productive biologically but not actually. Because population control is something we need to do to survive. So we're evolving beyond simple animal biology to a higher plane of biology (maybe that also includes destroying the planet unfortunately). It's becoming biological to control population. Someday maybe it will be.
It is called macroevolution and is not always benefitial to the individual.
No matter what the technical biological reasons for homosexuality (and I don't think they have been established because I think it's a very natural and timeless thing), I think calling it a defect is a very very bad idea. It fuels the fire for homophobia. We're trying to get past that.
People who come to that conclusion are generally the people who would be against it whether it was a traceable defect or not.
Nobody calls being left handed a defect, so lets not start saying that about homosexuality.
I do (or would if I was asked, it's not a hot topic to discuss or think about really). I don't go around pointing out to people that they are defective, but even if it did, it'd just make me rather rude, not wrong.
So there's no reason to treat it any differently than those things, and any discrimination whatsoever against homosexuals is no different whatsoever than discrimination based on race, and that includes the ridiculous debate as to whether homosexuals should be allowed to raise children. Studies show that being raised by gay parents does not heighten the likelihood of a child being gay, although it does increase their levels of acceptance of alternative lifestyles obviously, and the very fact that such a study was even done, shows how deathly homophobic our at-times-stone-age society actually is. What do you think?
I'm not talking about discrimination. That's a social issue. I'm talking about actual, physical differences between the brain of a hetrosexual and a homosexual. As far as I'm concerned, people can be defective all they want as long as no one else gets hurt as a result of it. It's not a bad thing (necessarily). Einstein had a defective brain (having some very interesting connections between creative and logical areas, although it may have developed through use rather than having a genetic cause), and that turned out fairly well. It's no reason to treat people differently, unless their specific defect requires it.
Although regarding having children, again, that brings another person into the equation. Doing a study is fairly reasonable, hell, it makes more sense than half the studies I've seen made. I'm big on wellfare of children and animals, mostly because neither has had a chance to prove to me what complete bastards they are (and the reason I like animals is obviously because they never do). It's no different from studies about children of single parents or being raised by grandparents or older siblings etc.
What you don't realize in that last statement is that when those urges are suppressed and controlled long enough, then in some, more and more as time goes by, the urges disappear. I know myself very well and have no urge in the world to have a child, I know others older and younger who are the same. We're not lying to ourselves. The more people suppress the need to have kids as time goes by, the less it will be a biological necessity for our species and more a choice.
Suppressing them doesn't make them go away. If anything, those who can do that will be eliminated from the gene pool and leave room for those that don't. There are however valid reason for why one would not want to have a child. Not being able to care for it is, for example. Although this is generally not true in the western world, society can trigger the same psychological response (through stress mostly). Quite possibly it will manifest itself as a fairly rational "I don't want to have a child right now", but that doesn't mean instincts have been overridden somehow. An animal would not want a child either under certain circumstances, but it can't reflect on why.
As for your particular wishes, we'll see. I can think of few things I'd like less than to have a child right now, but I have no doubt that I nontheless will end up with one eventually, given the opportunity.
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You're confusing the psychological with the biological, and saying that they are the same thing. Unless a physical action is involuntary reflex, then it's not a biological imparitive, it's just a rationalized pyschology (in this case, the rational concludes that anything that can be rationalized is biologically and evolutionary pre-determined, contrary to any real evidence connecting them.) Just because a person Can do something doesn't mean that they are supposed to. To think that anyone is supposed to do anything, when it's clearly in thier biological, psychological and all other abilites to Not do that... well, that my my freind is called a moral arguement.
Psychology is rooted in biology. Basic urges; food and reproduction certainly is.
From an evolutionary viewpoint only the species with the best adapted genes would reproduce, because there is no other point for any other organism to do so. In fact, inferior genetics should lose the abilty to reproduce because they just continue to further inferior genes, even among organisms that are more fit. Clearly that is not what happens, so it's not a matter of evolution.
That would be true in a system with only one niche. However, due to specialization and isolation, different species evolve. What matters is that you are fit enough to survive, not necessarily that you're at the top of the food chain. In cases where the isolation of two species occupying the same niche has been broken, often one will become extinct (or move somewhere else, or through evolution change enough to find another niche). If the isolation is not broken, then your genes are not inferior if only because there is nothing to compare them to. Had humans stayed away from America long enough, we may very well have seen species over there making fire and using tools. But since we've occupied that niche, it's unlikely it will happen (until inter-stellar travel becomes a reality at least).
All we really know is that animals reproduce. Outside of human consciousness we have no idea about what is motivating them to do so. Take the salmon for example. A female will lay it's eggs and a male will release his sperm to fertalize them. Since the match up is entirely random they don't have any idea what genetic combination it will achieve, further disproving the evolution viewpoint. The adult salmon will also die afterwards with no guarantee that they will have been successful at reproduction. That shows that the entire species of salmon is counter-productive to the individual.
I don't know a lot about the life cycle of the salmon, but I can't say I see anything directly disproving evolution. Even assuming mates are chosen at random, it doesn't mean anything. With so many offspring, it's a cruel game of dice where the stronger have an advantage. I can't explain the death of the parents, but I assume there is a reason for it. Perhaps they are unable to produce further offspring and therefore die to give them the best chances of surviving. The individual interest is to reproduce, whether that requires the individual to die in the process or not. I'd have to read up on the salmon, but quite frankly, I'm not that interested.
I mean shit, you could take the evidence and argue that maybe animals are just horny and they like to fuck and lack the mental abilty to use contraceptive, and reproduction is just an unintended result. so it's the sign of a higher intelligence and organism to not reproduce.
You could, but it would make little sense. It would fail to explain why primitive life reproduces. Occam's razor.