As if abstract argumentation could produce any truth about the matter. True atheism leads to the tower of Babylon, while Christianity properly lived leads to the best life one could hope for (plus the promise of the eternal).
Christianity works. Everything else breeds death. You shall know them by their fruits.
There have been people in history who have suffered more and turned out saints. Think of a slave boy turned eunuch by his masters and forced into servitude. Such people have existed, and someone out of them must've not sunk into hatred nor submit to the hand that castrated him.
Such things can happen. They have happened.
It's unfair to mix Christianity with the marxist's hatred for beauty and ideals. Christian nations made countless nude paintings and sculptures.
Also, the east is more than Japan. You won't find thong depictions in China.