Okay, I will say that being proud of it does make it worse, I can see that. I just don't think that automatically doesn't make them Christians
Romans Chapter 1
26 For this cause God gave them up unto vile affections: for even their women did change the natural use into that which is against nature:
27 And likewise also the men, leaving the natural use of the woman, burned in their lust one toward another; men with men working that which is unseemly, and receiving in themselves that recompence of their error which was meet.
28 And even as they did not like to retain God in [their] knowledge, God gave them over to a reprobate mind, to do those things which are not convenient;
Leviticus 20:13 - If a man also lie with mankind, as he lieth with a woman, both of them have committed an abomination: they shall surely be put to death; their blood [shall be] upon them.
1 John 5:16
16 If any man see his brother sin a sin which is not unto death, he shall ask, and he shall give him life for them that sin not unto death. There is a sin unto death: I do not say that he shall pray for it.
being turned homosexual is a reprobate punishment that DOES lead to hell
no you cant follow Jesus and be homosexual
but yes you can be forgiven and turn from it
also temptation isnt sin in itself
so if someone who has homosexual temptations
holds their thoughts captive
and doesnt lust
these people CAN be christian