Yeah, but you have to understand that what you just said is like saying "I could get fired from my workplace at an elementary school for being a pedophile." Not equating being gay with being a pedophile. If you think that you've missed the point. It's that your sexual orientation undermines the entire organization's belief, code of ethics, and their standing within their community. It goes against everything they are striving for. If you can't abide by their ethics, then you have no business working there as they are a religious organization. Why would you want to work for a group that is actively working against what you believe is right?
I still don't know why government is involved in marriage at all. I've previously proposed what is probably the best solution: Bring marriage back as a religious institution only, and the government will only recognize everyone as partners. Everyone gets the same healthcare and tax benefits, but religious connotations (marriage and the ceremony, traditions, beliefs behind it) are left to churches. That way gays can go to their gay churches (my wife's gay uncle goes to a gay church so they exist) and people who believe otherwise can wash their hands of it because their country isn't condoning gay marriage, just benefits which aren't tied to any one religious persuasion. Just like drunks, those who commit adultery, and liers (which is a sin just like everything else) still get benefits from the government. You wouldn't say that the government is actively supporting those sins because they get benefits and tax breaks like everyone else. Let the gays sin, and leave it up to them and God. And I know for a fact that the issue most Christians have with gay marriage is that it's called "marriage", which they believe is a religious ceremony that is described in the Bible as between a man and a woman. At least at the church I go to we are taught to love all sinners because we all sin and have our own temptations. But no sin is condoned, we can only help each other to be better people.