Christianity in ANY flavor is based on the Old Testament as well as the New. Christ said he came to fulfill the scriptures, not destroy them. And the God of Israel made very clear what he thought of Sodomites and other perverts.
And sexual perversions like homosexuality are totally incompatible with Christianity or orthodox Judaism.
“The arguments are the usual ones the sin of Sodom was rape, inhumanity, and breaking the laws of hospitality and not principally about homosexuality. The proscriptions about homosexual relations in Leviticus 18 and 20 applied to idolatry and male prostitution and not loving, committed, faithful, exclusive same-sex relationships. Jesus said nothing about the issue and much of what Paul says in 1 Timothy and 1 Corinthians is cultural or confusing and hangs on the definitions of disputed Greek words. In Romans 1 Paul saw homosexual activity, alongside all the idolatry of the Greco-Roman world. It was not born out of love, or orientation, but out of pagan practices, greed, lust and abuse of power.”
I’ve seen some so-called evangelicals argue that the Old Testament (and New Testament) commandments against the (heterosexual) use of prostitutes were “cultural” and that the prostitutes (I’ve seen this in some translations) were “cult prostitutes” and were a product of their era like a bug trapped in amber, therefore (it was implied but not stated openly) modern use of prostitutes was wink-wink not as bad if not OK. This is part of that same slippery slope.