Racism and other "phobias" relating to ethnicity, sexual orientation, etc. Revolve around the fact that the beliefs are prejudiced or focussed around the belief that your "group" is "better". If there's logical reason behind your "fear" then it's not prejudiced.
I don't follow? I was using a non-exhaustive list including dislike and discriminatory (other than fear) attitudes towards certain groups. Attraction is a complex issue, it's silly to label people who do not feel attraction towards certain people as discriminatory.
I mean, sure, if you go out with a closed-mind and say "I could never be attracted to a trans person, ew" or w/e, then that's transphobic. But the simple act of not feeling attraction isn't inherently transphobic.