The thing is… you could say the same about fornication, prostitution, promiscuity or adultery. I’m not arguing with the fact that homosexual acts are sinful. I am arguing with singling them out as somehow more heinous than other sexual sins. Everything that the OP said about the health impacts of homosexual activity, could also be said about illicit heterosexual sex as well, in particular when coupled with promiscuity.
I would argue that there is probably more heterosexual promiscuity in the world than homosexual promiscuity, given that only a small percentage of the population is homosexual. Which then, becomes a larger vector for health problems related to sex and a greater threat to human moral, physical and family health?
We need to look at the big picture, not just concentrate on our own personal world view.