...eh?
Where are you even getting all of this?
Experience, anecdotal evidence, pretty much. It is, of course, dependent on the person, but most guys don't just go into a bar and pick up a girl just like that. Some do, but most people actually don't do that.
Gays and lesbians, however, go into a gay bar and have a much easier time of it. And this makes a lot of sense, biologically speaking.
See, the thing is: If a guy courts a girl, and they want to have recreational sex, there can be a lot of implications there. First of all, they need contraceptives because obviously you run a risk of getting the girl pregnant (not what you want). Second of all, there is the risk of STDs - and if you're picking up a girl in a seedy bar, what are the odds she's carrying gonorrhoea or chlamydia? Pretty fucken high, I'd wager.
In other words, if you're a guy fucking a girl, and you would just pick them up, you are potentially risking a) AIDS b) other STDs c) knocking up somebody and then having to care for a child, d) actually having commitment to a sexual partner.
D) isn't necessarily an issue of course, but if you are looking for commitment you shouldn't be at a seedy bar anyway.
Now suppose you're a woman at a lesbian bar.
A) the prevalence of STDs among lesbians is the lowest for any sexual subgroup. You are risking much less in terms of health than you are if you were a guy fucking a girl. B) You can't just randomly knock somebody up. Sure, lesbians can have kids, but it's a time-consuming process that doesn't come from general sexual intercourse between the two. C) this means you also do not need to have any commitment to a partner if you don't want it.
It simply makes life a lot easier.
Gay men obviously still have a higher risk of STDs. But they also lack any form of pregnancy stuff. It means that the risk of having random sex with a stranger is much reduced, because you're much less bound to consequences.
In the western world, knowledge about AIDS is quite prevalent, and most guys will routinely carry condoms on them, removing the STD problem.
(I'm not going to get into the trans debate here).
This of course doesn't stop lesbian or gay couples from having a good long solid fulfulling relationship, but a lot of gays enjoy this lack of commitment casually and I do not see why not, as sex is fun as much as it is procreative. And different sexual partners open up a lot of different sexual avenues to explore, ones that you might not try when you're stuck to a single partner because every person simply has their own sexual preferences.
Note that what I AM NOT SAYING IS THAT ALL GAYS GO TO GAY BARS AND FUCK 1000 OTHER GAYS IN A GIGANTIC ORGY, NOR AM I ADVOCATING THAT YOU SHOULD DO SO.
It's a general trend. It makes perfect biological sense.
And I am pretty sure that guys pick up a lot of other guys at gay bars. Some guys even have 100+ guys a year, and this is all fairly normal. Straight couples just don't get that usually.
The fact that gays don't need to commit and don't need as much courtship if they want sex is a perfectly rational biological phenomenon. This, of course, doesn't stop a lot of gays wanting that commitment and trust and loyalty from a partner, which is also a justified claim, but in that case, I do not think they are the type that frequents gay bars often.