It is right to oppose gay “marriage”, and it is not bigotry - you’re acting in the best interests of people’s souls.
Yes, it’s horrible that people who exhibit same-sex attraction or are “transgender” are persecuted by society, but I place at least some of the blame on those who insist that these disorders are normal and not something that should be treated. People who could benefit from counseling and treatment are instead being shoved out into society with the insistence that everything is just fine.
I suffer from mild bipolar disorder. I call it what it is - a disorder. God made me as I am, and He called me to bear this cross. I have the option to give in to manic or depressive behavior, but is it a good thing for me to do? Using the measure of modern society’s views on homosexuality, yes. Never mind that it would leave me - at best - a suicidal homeless addict with multiple STDs whose soul is destined for hell; I was “born that way”, and anyone trying to get me to NOT act in accordance with my disorder is bigoted against bipolar people.
Same-sex attraction, “transgendered”, “bisexual” - these are all disorders, and those who suffer under their weight deserve our prayers, not persecution. But at the same time, it does them no service to claim that they’re just fine and they should do whatever their disorder tells them to do because they were “born that way”.