>>938030848 (OP)
The "gay uncle" theory of evolution is that homosexuality can improve a group's evolutionary fitness, because it creates a small minority of individuals who do not procreate, but are instead oriented towards taking care of their own family/tribe. These tribes with homos out competed tribes where every individual man was only trying to maximize his own offspring, at the expense of the overall group's wellness.
As seen in the Catholic Church, there's also the political advantage that closeted gay men have within homophobic organizations. They form a secret cabal within the org, bound together by a sense of mutually assured destruction. This creates loyalty, cause if I out Adolf for giving me a blowjob, we're both outed as gay, and punished.
Also, closeted gay men will mentor younger gay men, in exchange for sexual favors, and help their careers, or even promote them. There was a series of gay roman emperors, who all adopted their younger gay lover as their son and successor.
