No, it’s not his sexuality, per se. It’s his crazy ass Marxist insanity that turns people off. But of course, are messed up media reports otherwise…
It may as well be his sexuality. He's not just a guy who happens to be gay. He's "married" to another man, and denounces all who don't agree that gay marriage is wonderful as "not real Christians". He's a non-starter on that issue alone IMO. Throw in all the Marxist crap and he's a total disaster.