Agreed. And maybe about putting pressure on the U.N. as a whole. I'm thinking Trump is trying to generate a wedge issue between leftist Americans (all of whom are vehemently for gay "rights") and the leftists' favorite body of imagined world sovereignty: the U.N. The U.N. has many member nations of the Death-to-America variety.
Oh it totally is about putting pressure on the U.N. as well as the Left in this country. I think you are right on all scores.