There is also a case against me, for not wanting to be with a penised woman. Sounds like it's not settled.
There's not a case. You're entitled to your preference. Nobody would tell you otherwise-- some would however tell you you should feel guilty for your preferences. That's a personal issue between you and your conscience.
People reject other people all the time, and usually for reasons far more arbitrary and capricious than being incompatible with their physical anatomy. Height, weight, smokes, talks too much, annoying personality, thinks "The Real Housewives of..." is great TV, has weird-ass fake-looking Instagram style eyebrows, they're a Canucks fan, they wish Canada had a guy like Trump running things, they think the moon-landing is fake and chem-trails are real, ... I mean, there's an endless list of things that are potentially huge buzz-kills for one person or another. You can feel what works for you or what doesn't.
These things often work at a subconscious level... they're often not a deliberate decision that someone makes. What attracts you to a potential partner might be as innate as what draws a female peacock to the male with the most appealing plumage. And I feel this is why the people who ask that you rethink what makes you find some partners unattractive are out to lunch-- because there isn't a conscious thought process behind it at all. And if there were a conscious thought process that people could simply revise, I would imagine that most people would simply revise themselves to be cisgendered and heterosexual-- because life would be so much easier in many different ways.
I feel like there's a huge disconnect between the idea that sexual orientation is not a choice-- which I think most people agree with-- and idea that lesbians could simply rewire themselves to find male physiology attractive if it were presented by someone who identifies herself as female. It just doesn't work that way.
And oddly (or perhaps not oddly...) I haven't seen a male-related corollary to the "cotton ceiling". I can't find anybody arguing that straight men ought to be taking trans women as sex partners, for example. This seems to be an idea aimed specifically at women. Perhaps it's based on the idea that women are just inherently flexible and men aren't. Perhaps somebody heard "every woman is just a couple of drinks away from being a lesbian" and extrapolated. I really don't know.
-k