I'm bi and would date trans people so it's difficult to relate. I wouldn't write "only interested in (for example) white people" on a profile because it may imply racism, even though there may be no hate and the intention would be to just save both people's time.
I use the word aversion to make a distinction between other people who hate. Someone who feels sick seeing a same-sex kiss is having an aversion to homosexuality but that doesn't mean they hate, or want to kill and could be an ally in all ways. So yes, I would say not wanting to date trans people falls into a category of aversion by my definition, but that's my brain trying to sort things. I don't mean anything bad by it.