Why should I care about looking respectable to a bunch of bible-thumpers who've spent the last decades loudly screaming about how much they hate me and everyone like me?
More to the point, a homosexual that adheres to traditional family values (ie: one partner for life, moderate sobriety, responsible adult) is much more appealing than one that exists outside of traditional family values (ie: promiscuous, heavy drug and alcohol use, other irresponsible behavior). In this instance (and numerous others), the basis of opposition to homosexuality is that acceptance invites degeneracy and destruction of harmonious society.
Do you think a majority of Americans have not had premarital sex?
The average American has 7.2 sexual partners over their lifetime. [1]
1. https://www.refinery29.com/2017/08/169555/average-numbers-se...
> Homosexuality and promiscuity are closely intertwined, my argument is that they must be disentangled for homosexuality to be generally acceptable.
So why don't you quit entangling them? The only reason homosexuality and sex positivity are entangled is because of the thousands of years of murdering homosexuals, oppression of women, oppression of polyamorous, etc.. the thing they have in common seems to be a series of hateful bedroom laws enacted by a wannabe theocracy.