To accept homosexuality, the church would have to invalidate itself

The answer to the question "when will the church accept gays?" is: never.

For the church to revise its exegesis of Lev 18:22 and 20:13, it would have to find something to prohibit in place of homosexuality.

There is only one other possible interpretation of those verses:  that they prohibit adopting into the inheritance of another, disowning oneself from one's original family line, and from disowning another from the other's original family line.

Because it has predicated its ownership of text, and therefore its own legitimacy, on its theology of adoption, the church cannot read the text as the text was, in fact, intended.  If the church accepted this reading of the text, it would invalidate its own basis for legitimacy, and thus would invalidate itself.

It is not going to do that.

That is also why nothing that I have written will ever be published:  publication would indicate at least the willingness to entertain the possibility that what I have said has validity.  Accepting that possibility of validity would invalidate the Church.