I agree that lesbians don't owe love to absolutely fucking anyone, but here is something I gon't get.
Everyone and their tumblr is acting like bisexual women are these super privileged traitors who have a 50/50 split choice between the financially secure socially privileged heterosexual marriage with an asswipe scrote and a loving perfect wonderful politically righteous relationship with a woman just waiting in the wing if she says no to the het privilege.
So bi women need to take responsibility for their sexual behavior.
But when we start talking about heterosexual women, most radfems are in the clear that you can't control your attraction, that people find it difficult to live without a romantic partner, that we should be understanding of other people's perspective and that most women, including het, aren't pinkpilled, so we can't really expect them to make that choice that goes way against social expectations.
Most bi women are not radfems either, also, being bi, you did grow up with the same expextations as a het woman, sort of having the software that is required of a "proper het woman" too.
There's a roughly 10 men : 1 woman in your dating pool if you're bi most of the time, and then saying no to men doesn't mean your chances of finding a female partner automatically increase. If you aren't actively and decisively trying to find a woman to date the dating pool looks more like 100m:1f. It's almost never a clear 50/50 attraction other, they lean one way or the other.
Bi women are not immune to homophobia either, I don't have ther exact numbers, but most never act out on their bisexuality beyond maybe masturbation ever when they have opportunities, and if that makes them traitors to the LGB, well, I don't see any such scrutiny directed at bi men. I also don't see bi men being criticized for being "too het" or being to blame for the gender nonsense.
Being in a lesbian relationship isn't all that easy either, relationships in general are hard are there are plenty of lesbians who struggle to find The One, Sekhmet She-Owl herself included. Granted, being with het men is statistically so much shittier we can't compare, but it takes far less effort to get stuck in one.
I don't exactly see then how we can't ever expect het women to stop dating men even if said women proclaim themselves hardcore radical feminists, but the general population of bi women owes us exactly that and if they don't do that they are traitors, impure and tainted by association with men while het women are just being themselves.
Granted, Sekhmet doesn't cut any slack to hets, but she is in minority.