Homophobes /transphobes hide behind the Bible even though many argue it has been taken out of context completely and have evidence to prove that. Plus, Jesus and God loves everyone.
Racists hide behind the Bell Curve starting it's "real" science. And they preach those facts about how certain neighborhoods have a higher crime rate because of race, not because of poverty or because of stereotyping which prevents people from getting a job,etc.
People who hate fat people hide behind "it's unhealthy" even though there have been numerous reports stating otherwise.
See a pattern?
So, never let anyone shame you...
They are a bigot no matter how much they try to hide behind "evidence" (by the way that "evidence" is usually outdated and incorrect and from sources benefiting from something)