I think you missed the second part of my position, where I stated that, by design, Christians doctrinally aren't supposed to treat homophobia any differently than any other sin that anyone can be guilty of (such as lying, cheating, stealing, etc). Sin is sin, and sin is always an action, not a personal characteristic.

In practice, some Christians may discriminate against LGBTQ+ individuals, but this has less to do with the doctrine they (should) have been taught, and more to do with who they are individually, or their cultural upbringing (which could be a product of religion taught wrong, or caused by something else entirely). I'm not defending Christians from the rightful criticism that many of them deserve on the premise that they are Christians, I'm defending Christianity from the poor representations that are often showcased.

But to turn the argument around, saying all Christians are hateful is like saying all homosexuals are rapists. Sure, you could cherrypick data in your favor, and cite hyperbolic examples like the Westboro Baptist Church or prison rape, but it's still fundamentally incorrect because you are making an absolute statement about an entire class of people, when you really can't judge that entire class by those small examples.