Then what are heterosexuality and homosexuality defined by?
Pornographic material: Pornhub has entirely separate sites for "straight" and "gay". Would adding a "furry" site really feel all that strange or out of place?
Porn categories do not define sexual orientations, so I do not understand your point. Sexual orientation is a description of the sexual characteristics of yourself and the people you are attracted too, neither of which are decided by whether or not either of you are furries.
sex toys, roleplay scenarios: I don't think that's as strongly correlated as you're suggesting. Pony/pet play is big in the BDSM community and bad dragon toys were far from exclusively for furries. Unless you have something else in mind I'm unaware of?
Shared hobby: What exactly is the hobby all furries share?
I'm not claiming all furries do all those things. I'm saying that all of the characteristics that make someone furry sexual are covered by the categories I listed. None of the categories I listed are relevant to whether someone is heterosexual or homosexual.
Also, the hobby that many furries share (I never said all) is fur suiting.
This is incoherent to me.
How so? Also it would help if you didn't cut off the quote mid phrase.
I'm giving a family resemblance definition of furry sexual. I'm not making any deep claims about the activities of any particular furries.
You're presupposing the conclusion you want to draw. I don't believe furry is a gender so you're not going to convince me that wearing a fur suit is gender affirming care.
I'm not reducing the entire furry fandom to fetish. I'm claiming that it's a fetish community. Does it have more depth than that? Yes, but that doesn't change the nature of the fandom. You could make the same claim about adult babies. They do more than just wear diapers. That doesn't change the fact that it's inherently a fetish community.
I'm not questioning anyone's gender or sexuality, so I'm not worried about that happening.
This has been a long conversation. It's been getting less focused and more repetitive, so I'm going to call it here. I hope you have a good day.