Soo... what's people's excuse for hating Trans people?

I know people use the excuse that they don't like, hate, and don't support us gay and Lesbians because of the bible and religion right? Now I have seen NOTHING about God saying Transgender people are bad but yet debatively transgender people get more hate than gay and Lesbian people. I've seen numerous people call trans people "it" which to me is the most disrespect and just disgusting thing you can call someone. But yet there is no "reason" as to why they get so much hate. I mean I know why they get hate because the people who hate on them are scummy bitter piece of shit assholes who have nothing else better to do with their time and life. But I've never heard their "reason" or what they believe is a vaild "excuse"