Like Trump, beyond what you think from Liberal Media talking points Trump is not anti gay rights.
He's been a consistent proponent of "traditional" marriage (presumably the belief that marriage is between one man and one woman and two divorcees) and has said he would appoint judges who would overturn Obergefell v. Hodges. At one point he was against bills supporting LGBT discrimination (aka, bathroom bills), but has reversed on that recently.
Not sure how that is construed as not being against gay rights when his own stated beliefs say otherwise.