Religion, by definition, is idiotic psychological abuse. We're all sinners in the hands of an angry God.
Not all religion is as obsessed with sin and rage as the Fundamentalists tend to be.
But American Christianity (and I have to talk in an American context simply as that is pertinent) in general does have a particular problem with non hetero normative expressions of sexual and gender identity. For example on the basic question posed by Pew 'Homosexuality should be accepted by society' is agreed by 71% of those non-affiliated, 84% of minor faiths, 82% of Buddhists, 79% of Jews, Hindus were low on 48% but Christians as a whole could only muster 44% approval. Only Muslims did worse. So it's not necessarily a religious problem (as some faiths outperform those non affiliated) and it doesn't seem to bother American Jews, so what is it about Christianity as a faith in Amer icathat either collectively affirms negative views or attracts those with negative views to it?