In many societies it did. It faded away from the Ancient Egyptian system pretty early on in their history. It faded from the Mediterranean systems also. The bigger question here, though, is that of purpose - what purpose was human sacrifice serving and when did it stop serving that purpose as well as why. For years, apparently people did not view human sacrifice as the moral evil we see today, so if they made that argument because human sacrifice were still socially and culturally relevent, the only retort we have is 'Well we don't like it'. We're not talking about groups of people who have notions of individual freedom or rights, so I think you're trying to square peg a round hole here.
It only faded in areas where people were prepared to question the value of it as opposed to saying, "well its been around forever therefore it must be good".
And the retort for gay rights is hardly limited to only being, "well we don't like it". Talk about a whopper of a strawman.
But with the gay thing, my honest answer is: so what? No-one remotely cared about this issue until the 20th century, when the concept of homosexuality was created.
I dont think this is true;
'Societal attitudes towards same-sex relationships have varied over time and place, from requiring all males to engage in same-sex relationships, to casual integration, through acceptance, to seeing the practice as a minor sin, repressing it through law enforcement and judicial mechanisms, and to proscribing it under penalty of death.'
Source:
History of homosexuality - Wikipedia
It's not been an issue for thousands of years. It's also still a minority of people who think that we need to have some kind of gay liberation, because most peoples in the world simply aren't on board with it.
Ever heard of the Argumentum Ad Populum fallacy?
"In
argumentation theory, an
argumentum ad populum (
Latin for "appeal to the people"
[1]) is a
fallacious argument which is based on affirming that something is real because the majority thinks so.
[2]"
Argumentum ad populum - Wikipedia
Ideas such as these are from a very modern Western liberal mindset that simply does not translate overseas. So here most Abrahamic systems are still doing just fine. Christendom has been open to homosexuality for at least half a century now in some way or another. Sodomy/private homosexual acts was legalised in the England in 1967. That was 54 years ago. So I'm not really sure what the complaint is.
The complaint is against those cultures which still have those negative practices incorporated into their culture.
I have nothing against Christians and others who accept science, gay rights, women's rights etc. Even though such world views dont make sense for me personally.
In my opinion.