From the second link (article):

The publication of LYE was the one of the first times that the notion of sexuality as a choice had been publicly raised in the UK women's movement.

Fantastic. Some radical feminists helped popularize this particular piece of pseudoscience.

Yeah, I see what you mean when Julie Bindel says this:

Others, such as myself, found that the arguments in LYE spoke directly to feelings that had already been developing. Opponents of political lesbianism argue that "genuine" lesbians are motivated purely by lust towards women, rather than a decision to reject men and heterosexuality. For me, however, my lesbianism is intrinsically bound up with my feminist politics and my campaigning against sexual violence.

And, her "instrinsic sense" personal feelings are given more weight than any empirical evidence:

To me, political lesbianism continues to make intrinsic sense because it reinforces the idea that sexuality is a choice, and we are not destined to a particular fate because of our chromosomes.

And she ends with this entreaty:

Stop pretending you think lesbianism is an exclusive members' club, and join the ranks. I promise that you will not regret it.

What a fucking homophobic thing to say. Can we play a game of "TRA or radfem"? That literally reads like it's from the sidebar of r/actualtransbians.

Sorry to go off about this on your comment lol, I'm just amazed by this person's audacity to make up bullshit for her own personal ends. I didn't think she was that bad initially, but the more I read her writing, the more I'm disappointed.