I'm glad you asked because I don't think my original post really dug in to how horrific this is.
So even though masculine women are a huge turn off to let's say for the sake of argument, 95% of men, those other 5% of men will still actively pursue masculine women. And because it's a "niche" they will get constant attention from a lot of men, even if it's 5% which is a conservative number.
These men will message them on instagram, etc. And in my example, these aren't even incel men, but those who can get girlfriends, and still lust after their "niche" desires.
You make the point that gymcels eventually lean towards masculine women, that wasn't my original point but hey, that doesn't sound wrong to me. I guess that's why they get that way.
Oh and the tranny p*rn thing, that was a different off-shoot from my original point. The main point is that women will always be desired by some man, or men, somewhere. The opposite is not the case.