Are you gay, straight, or bi?

Different from you does not mean abnormal. Maybe his views are the norm and we're the weird ones. Heck, in nature, bisexuality is displayed pretty frequently. It could be said that if you aren't bisexual you're not normal. Everything is based off of perspective, and there's more than just your own that you should consider.

Why do you always have to argue? Just for the sake of arguing?

It's not only different from me, it's also different from society's perspective. It is not normal in society for a person to have a fixation with shemales. Do you hear more about straight people or people that love man-cock on women? Thought so.