God and the dilemma with unfalsifiability

[Neo-Scholastic]

I think you will find that fornication is a very general word that applies to all kinds of sexual immorality. Gender identity wasn't a thing for the writers of the bible.

And presupposing sexual immorality is not a bigoted stance?

If by bigotry you mean intolerance of beliefs and behaviors that offend some kind of moral standard, sure. I don't tolerate lies. You probably don't either. Or if you are talking about intolerance of self-selected groups that have vile and depraved ideologies, sure. I don't tolerate communist organizations. Otherwise sexual immorality is not limited to any particular demographic. Neither is any other type of immorality. There is nothing special about sexual immortality that separates it from other offenses. All forms of wickedness are lumped in together and not attributed uniquely to any particular group. For example:

"To the thirsty I will give water without cost from the spring of the water of life. Those who are victorious will inherit all this, and I will be their God and they will be my children. But the cowardly, the unbelieving, the vile, the murderers, the sexually immoral, those who practice magic arts, the idolaters and all liars—they will be consigned to the fiery lake of burning sulfur. This is the second death." - Revelation 21:6-8