Again it isn't a choice. I didn't wake up one day and say "I think I'm going to become something that sends me to hell, my parents and pretty much all my family will hate me for, my friends will bail on me for, and other negative things"
I didn't decide "I'm tired of seeing the same pair of tits over and over, dump my girlfriend and start getting off to dudes"
If you were working a job with a black guy and you made it known that you had a problem with him, and made it a repeated thing, do you think it would be fucked for a company to get rid of you? It really doesn't matter what you believe, if you make an environment where other people can't work because of your prejudices, that's on you.
Nobody is saying you can't hate gay people, or black people, or think that eating turkey is a sin. Just don't start shit in the workplace or fuck up my thanksgiving dinner.
As far as the workplace, I've only experienced it from the other side. One mountain I worked at for 3 years had to deal with a douche boss going around and telling kids to not be friends with me because I was gay. I drove over an hour each way on shit roads to work my ass off and barely make any profit after gas to try and build a good park for the kids. I didn't do anything about it because I did want the attention from people like you. "Gay man tries to ruin the careers of everyone around him because he's gay....."
You can believe what ever the fuck you want to believe, but if it's ignorant as fuck you might want to keep it to yourself.