I think whatever your preference may be, realize it is your preference. Sometimes there's an underlying meanness or cruelty to people's preferences. I do prefer good looking guys, but i am a very nice person, i'd never diss, insult, mock or disrespect anyone who isnt my type.
It has to do with compassion, how genuine you are, the trueness of your heart.
Just be a nice person, no matter what your preference is. Dont have an attitude about it.