They're men, being aggressive and entitled is typical male behaviour. They want lesbians as a validation. Dating someone who is only attracted to women is how they validate themselves in the idea of being women. That's why they're so much into lesbians than bisexuals, who will more likely to date them. I mean, if I were bisexual, I would probably give a try too. Many of them are literal incels, who thought passing as trans would have increased the possibility to date. It surely increases the possibility of harrassing women without getting judged, and staying in women spaces. Look, as a normal man this dude would have been criticized for harrassing a lesbian, but as a trans, he has people supporting him as the victim. And then what kind of friends she had, who left her for this?