I think the skepticism comes from the fact that advances in this kind of surgery have been pretty recent. It's not *that* long ago that making a decent penis...well...

I know a cis woman who looks more like a cis guy than almost all the trans women I know, so absolutely there on the variety.

There's also the "trap" narrative, the idea that falling for a trans person makes you gay (or, in this case, straight). I think that's the root cause of fear rather than "the unknown." If somebody's presenting full masc or full femme and you feel attracted to them, that doesn't change your sexuality.

But I do think it's important to respect body preferences because not doing so frames things in a way that ignores the equally basic issue of consent.