I don't disagree on either point. Homosexuality should be criminalized, as it has been in the past. Now, it is up to the states (NOT THE FEDGOV) to decide whether they want to criminalize it.
And I agree that homosexual organizations have nothing in common with a party that supports marriage as between a man and a woman.
I don't think the Republican party should not require a homosexual litmus test for membership. Thoughtcrime isn't American.
However, if I was an influential member of the party, I would want to expel any person in a leadership position who was caught having sex with someone not their spouse, gender regardless.
To an extent I agree with you.
On the other hand, I think if Lawrence v TX was going to over-turn criminal statutes regarding sodomy, it would’ve been alright if they simply kept their private behavior to themselves. In a democracy, consenting adults can adhere to their own principles.
However, as the dissenting justice noted, they used this victory to push for the redefinition of marriage, and to attempt to transform the culture in their own image. This is not Republican.