>>29249684
Uncanny valley.
Plus, you're still a dude, at least to her deep down. Women rate each other on much more generous scales than they do men, especially men they don't know.
Meanwhile, men don't have as much hypergamy. Your brain is programmed to want sex with anyone who is "good enough." Women's brains evolved to seek two kinds of mates in parallel: one who provides and protects (makes them feel secure) and a strong dominant one with great DNA to have sex with (someone can fit both roles btw). So you walk into a room full of lesbians and see lots of women who qualify, whereas they all kind of decide who the very best option is and assuming she's even present, compete for her sexual attention. Meanwhile they couple up with their safe options, trading up whenever possible, cooperating like besties but also each wanting their GF to do more for them. Hence
>>29249711 is the stereotype. What do lesbians bring to a second date? A u-haul. Also cue the lesbian bed death jokes, because they're just friendzoning their gf the way a straight girl loses attraction for her bf. They're quick to be attracted, quick to fall in love and commit, but also quick to lose attraction and break up when somebody new and better shows up.
So even if the lesbians see you as a real woman (and again, deep down they almost certainly don't), you still won't get laid, because they're all pining for some other girl they've all agreed is the very best, and won't settle for less except as a bestie or a mostly sexless LTR.