From Linker
Rather, it’s a culture fervently devoted to the moral principle of equal recognition and affirmation — in a word, to an absolute ethic of niceness. Moral condemnation can be mean, and therefore it’s morally wrong — that’s the way growing numbers of Americans think about these issues.
Of course, these nonjudgmental Americans would think differently — they would continue to publicly affirm notions of human flourishing and condemn acts that diverge from the norm — if they confidently believed in the foundation of these judgments. But increasingly, they do not. Judeo-Christian piety used to supply it for many, but no longer.
Get married and have kids? If that’s what you want, sounds good. Live in a polyamorous arrangement? As long as everyone consents, have fun. What about my intense desire to copulate with a horse? Just make sure no one gets hurt — with hurt defined in the narrowest of terms (covering physical harm and the violation of personal preferences).