
Yes, and also lesbians are a minority community, which ads a bit of nuance too i think. Stigma against dating bi men is generations old and came out of homophobic propaganda during the AIDS epidemic. The cishet powers that be didn’t see the death of gay and trans people as consequential, and their only fear was that straight people (especially straight white women who weren’t sex workers) might get it, hence the public response being “fear that your husband might secretly be bi”
While biphobia should not be accepted from any community, we shouldn’t equate a deadly legacy of homophobia that still influences cishet people today (even if few straight women who participate in it understand why they really feel this way) with inter-community fighting: neither biphobia or lesbophobia are okay. Lesbians and bi women have a lot more in common than they don’t. This whole discourse is stupid just love who you love, if someone doesn’t want to date you then date someone else