Some is, some isn't ...
I like the Magna with lots of flowing breasts and lots of creampies. No control, no pull out, no responsibility. It's a nice break from the norm. Especially some of the "set-ups" where normal porn won't go sometimes -- especially with the laws that require adult actors/studios to "promote sexual responsibility." Especially where the woman rapes the guy, but he's clearly into it, just denying himself.
My wife and I are trying for a baby, so we constantly role-play with my "not pulling out." She also loves it when I bite my tongue and don't give her a hint when I'm going to unload -- especially during BJs. So Magna is just an extension of what I have with 1 woman in my real-life.
Now the Magna where men (or women) take advantage of girls (or boys), or there is incest -- sorry, that's where I draw the line. Can't get into that at all. It sets the wrong message completely -- especially when someone is a guardian and the child is dependent, not consenting at all (especially when clearly so!).