With all due respect, that transition in thought is one that was not intended, nor one that I would agree with.
Slavery was legal and in the USA, no doubt the majority approved of it. But times were changing and it was inevitable that slavery was going to be eliminated.
My point was simply if one is living in a times when certain behavior or acts are accepted, then it is wrong to then condemn that person for those acts.
That's absurd. You preempt any moral judgement simply because something is legal and accepted. There are plenty of examples of things that can be morally condemned, yet are legal and accepted. Abortion immediately springs to mind.