FARTs (feminism appropriating radical transphobes) use mental gymnastics to deny trans women their "womanhood".
These mental gymnastics seem (from my pov) pretty "basic" when compared to the hoops you'd have to jump through to deny trans people their "transness" with the goal of excluding them simply bc they are also furries.
And more generally "just" excluding furries from trans (or queer) spaces (f.e. for their supposed "indecency") makes as much sense as "banning" the kink & BDSM communities from pride, ie. NONE at all
(not comparing the two in terms of nature/"content" but rather significance/impact)
It's the "othering" that I think is being talked about, not sexual preference. You're right that being a furry is not a sexual preference (though I know there's a ton of porn related to it).
I think the porn is bordering on being a fetish, which I think is why some people feel a bit squeamish about it. For instance you probably wouldn't want to see s&m/humiliation kink in public, such as making someone have a leash on. Obviously do what you want in private.
Spesifically I made this meme due to some commenters not wanting to respect neo-pronouns.
I understood the pronouns as somewhat furry, and thought of the case of furry tolerance (a convo I've had with some friends.)
the reason for dismissing both furries and the spesific neo-pronouns seem to be the same; that it's seen as very sexual
Lotta people think furries are "cringe" and want to assimilate into cis het society by rejecting anything that doesn't look like traditional roles and presentation.