Yeah many bisexuals (at least women, idk about the men) are homophobic as fuck, surprisingly. A lot of them view same-sex relationships as "just for fun" and treat the women they date as less-than or as a fUn reBeLliOn XD. They also, as exemplified above, like to insist lesbians should be open to penis because they like penis. "Sexuality is fluid!" they'll lecture you, as the only sexual orientation that can be fluid. Every lesbian I know has a rule against dating bisexuals. Most of us try it once when young and dumb and then never go near a bisexual again.

It's a well-known thing and you'll see a lot of wokies complaining about it if you ask, lesbians and female bisexuals generally do NOT get along.