Exactly. That's hilarious because we are the only ones capable of preference between two things we like. Everyone else has to either choose the one option they actually like, or be forced into the option they don't like.

But despite what TRA's insist, not being attracted to genitals that have been surgically/hormonally altered is also not a preference, it's both a lack of attraction and a feeling of revulsion that comes from deep within a person. I don't know if you've ever seen a vagina of an FTM who's been taking hormones for a long time, but it looks like there's a mini-penis growing out of there. (DO NOT google "Testosterone clit" unless you're really ready to see things you cannot unsee.)

"I don't prefer this type of vagina" is not really the sentence I would use for what's going on in those pictures, "prefer" is not even in the ballpark. It's more of an instinctual "that bodypart looks diseased" feeling of repulsion.