How do you respond to the argument that homosexuality is immoral because anal sex can spread disease & they don't have PIV option?
Keep in mind they're sophists so it has to be a well-structured logical argument. I don't know why I keep arguing with these kinds of people. Disclaimer: I'm pro-LGBT.
Gather up the people making that ridiculous argument, put them in a shipping container and drop them in the ocean
Reject the premise that disease and morality are in some way causally related. Once they make a claim close enough to reality to tell you what they're really wrong about, start there.
While I wouldn't oppose putting the people in a shipping container and dropping them in the ocean, recklessly spreading disease or engaging in behaviour more likely to spread disease can absolutely be amoral. For instance, people who refuse to get vaccines (but otherwise could). People who refused to mask during the height of the pandemic. etc.
Spreading disease can be immoral, but when it comes to sex, that should be two properly-educated and consenting adults doing something that won't affect anyone beyond the two of them.
We can reassess the situation when diseases transmitted by gay sex are overwhelming hospitals.
Homosexuality IS NOT IMMORAL and never could be. Only if all human sexuality is immoral, and it isn't. Only a total uneducated idiotic piece of filth would ever say that homosexuality is immoral. It is not immoral. It never could be immoral.
I probably did respond to the wrong comment then - wouldnt be the first time. : / I was responding to the idea of sexuality of any kind being immoral - which is ridiculous. Willfully spreading disease WOULD be immoral in my opinion, including refusing to get COVID vaccinations every year.