I was accused of transphobia...

Recently I expressed that I would not date a person who had changed sex because I wouldn't be able to wrap my mind around the fact they were previously a woman. I don't have no problems with transgender, you do what makes you happy! I would happily be friends or whatsoever. Still I was being told I was "transphobic" because of that - which I thought wth? So what if I said I wouldn't date another girl, that would make me homophobic...? I think there is a huge gap between saying "I wouldn't date" and "I don't accept it"... please drop your opinions!