His saying "I don't judge" is implying there's something there to judge, as if being gay means your life is one big outrageous Pride Parade with bondage, indiscriminate partner swaps, unprotected disease-spreading sex, and "recruitment" - you know, all of the thoughts that people have when the outmoded term "gay lifestyle" is thrown out there. He's not saying "there's nothing to judge," he's saying he's one of the "open-minded people who lets those weirdos of the hook."