The reason the homosexuals get preferential treatment is because they have a disorder which compels them to undulge in perverted, irrational sexual interactions with each others who suffer the same condition.
Their disorder dominates their lives, so the choice may be to provide them with places to indulge their compulsions with each other in an environment away from normal people, or to ban those bathhouses, which would increase the number of homosexuals doing it in public areas.
Either way, they will do it.
You may have other ideas as to control the effects of the disorder.
Regarding the promotion of 'safe sex' in these establishments, my experience is that the deviants will do whatever they want, no matter how many condoms or safe sex messages are pushed into their hands. The condition is destructive, and the spreading of deseases is seen as a positive result of their actions for many of them.
I'm not being alarmist, extreme or dishonest in what I've said here. I have seen and experienced it. This is how many of them think. The authorities can lay down as many regulations as they like, but the homosexuals will do what they are driven to do. That is the nature of the disorder. It isn't moderated by logic or self-preservation. It's a sickness.
I don't have any first-hand experiences to relate, but I have read a fair amount on the subject and what you describe sounds pretty accurate. Some of the men who frequent these place readily admit they con't practice safe sex. Others have actually admitted they want to contract AIDS as some sort of act of solidity with the afflicted. I can't explain it other than to agree that it is a sickness. This is one very screwed up bunch of people.