@Sad_Sack — You're familiar with the phenomenon of straight men of all ages being most sexually attracted to very young women, right? Like if you have two groups of straight guys, one composed of 20-year-olds and one of 80-year-olds, and you ask them to describe the sexiest woman they can think of, both groups are going to describe someone who looks a lot like a 20-year-old woman. No one finds that strange, because health and child-bearing potential and blah blah blah.
The preference for youth tends to persist even among men who don't literally want babies. As it happens, it persists even among men who prefer partners without baby-growing equipment. There's just something about fresh-faced, barely-adult bodies that turns most guys' cranks.
Obviously, this isn't every man on earth. Also, some women like the look of 18 to 21-year-olds too. But it's a well-known thing that men tend to be most attracted to quite young sexual partners. It no more makes sense to tell a 40-year-old gay man that self-acceptance will greatly improve his sex appeal than it would to tell that to a 40-year-old straight woman. Self-confidence is a plus, yes, but there are still a whole lot of guys who will pass up a confident middle-aged person in favor of an excruciatingly shy 18-year-old. That is how very young gay guys hold a disproportionate amount of influence in the gay community.
I'm not trying to make anyone feel worse, and I apologize if I have. I think most of the androphile population is aware of these issues, though.
For what it's worth, my own sex life improved slightly after I transitioned. (I tried being a straight woman for some decades. It was awful and I hated it.) I think the increase in self-confidence and self-acceptance did help. Those are worth something, after all. I also quit trying to date cis dudes, which has worked out somewhat better for me.
There are weird dynamics in gay transmasc dating as well, of course—partly because that population really does skew very young. People of my generation generally didn't have the option to transition when they were young, and now they're married and at their career height, with 1.8 children and two mortgages and and their increasingly-senile in-laws needing to go into care but refusing to leave their hoarder houses. Most people in that situation don't dare make such a major change because they feel they have too much to lose, and they're probably right.
The small number of folks who did transition in the 80's or 90's tend to either be living stealth and passing for cis people, or else they're dead. AIDS didn't spare gay trans men any more than it spared gay cis men. And there's also always isolation, discrimination, poverty, and despair. So if you're transmasculine, gay, and 50, and you don't want to date someone born after you graduated college, what are you supposed to do?
I guess maybe the logical thing to do would be to have the horny middle-aged cis gay dudes hook up with all those horny twentynothing trans gay boys—except cis gay guys tend to see screwing trans guys as beneath them, so fuck everybody, I guess. Or they can stay home and fuck themselves, because at this rate they sure ain't gonna be fucking anyone else.