Atheists want to go back to barbarism, but in the end good triumphs evil because all people are not selfish and insensitive.
This statement literally makes no sense. Without picking it apart, I can count at least three grammatical and syntactic errors that clearly cause it to mean different things than your obvious intended meaning. It is utter "non-sense."
Aside from this, it just continues to prove that you're trying to provoke and offend people. You don't have the first clue what barbarism means, but you use it to stereotype a group of people (atheists) because you know it will be considered inaccurate (at best) or offensive (at worst).
And as far as the supposed intended meaning of the statement (provided you were actually sincere, which you aren't), consider this for a moment:
All religions with some kind of eschatological teaching or a notion of salvation posit that there is something "more meaningful" in the after-life. What we do here on Earth, they say, is insignificant to what awaits, because the rewards or punishment are infinitely more lavish, and extend for eternity, as opposed to the finite time we spend on Earth. The only real point of our corporeal existence is to guarantee ourselves a place in heaven and avoid going to hell.
This is an extremely pessimistic and nihilistic view because everything of significance is yet to come. All the so-called "end of the world" cults take this crap seriously, and many even commit mass suicide because they're obsessed with the idea that there is no point to living. Many terrorists also commit horrific acts of murder based solely on the promise of eternal bliss in the after-life. But even for more level-headed people who just happen to believe in God, the notion that the type of people we become and the way we behave toward others is ultimately insignificant have an extremely negative outlook on human existence.
On the atheist perspective, what we do here & now matters. The atheist perspective is much more conducive to leading a just life because it is not based on fear of eternal damnation or a promise of eternal happiness, but on true notions of right and wrong, justice and injustice.
In other words, atheists don't want to do any such thing, asshole. And theists wouldn't know whether good had triumphed over evil until they were dead, to say nothing of being wholly selfish and callous toward anyone else's salvation while they're obsessed with their own.