As has been discussed, it is a fact that "exclusive genital preference" is a sexual need. It is a fetish. You may not like it, but you are the one kink shaming and invoking hyperbolic language around how awful it is to cop to a fetish!
Bullshit. It hasn't been established in any way at all. You're completely inventing crap and just making up your own definitions as you go. It's idiotic in the extreme. It's not a fetish, it is the very basic definition of sexuality.
And I'm not "kinkshaming" at all. I don't give a fuck what your kinks are. As long as they're consenting, fly your kink flag as high as you want.
On the other hand... denigrating people for having a fixed sexual orientation as "bigots" and "transphobes" and "fetishists" is 100% you trying to shame people for their fucking sexual orientation. it's coercive and it's abusive.
Trying to shame people into accepting sex with people who have genitals that they are not attracted to is, in my opinion, completely fucked up, perverse, and borders on being rapey. The "butch lesbian transwomen" out there who are harassing and demeaning lesbians because lesbians don't want to have sex with their dicks are bad people who are trying to shame and guilt women into having sex against their will. The transmen throwing a fit because gay men don't want to fuck their "front hole" and calling them bigots with "penis fetishes" are fucking twisted motherfuckers trying to coerce gay men into having straight sex for fear of public censure.
It's regressive as all hell. The fact that you can't see that, the fact that you fucking condone that? That's some fucked up shit right there.
Do whatever the hell you like with consenting adults. But do not fucking shame or denigrate people for liking something else. Do not fucking apply derogatory labels to people who don't want to engage in your kinks. For fuck's sake, don't call exclusively homosexual or heterosexual people "fetishists". That - that is literally shaming, and you're shaming for a not-kink.