What if his religion tells him, gays OK, but marriage is only for opposite sex?

So? What if my religion said mangos shouldn't be cut before being eaten? Obviously that shouldn't apply to everyone else, that's my religion.

So at that point he's a bigot justifying it with his religion which still means he's a bigot.

My point is there are degrees of badness. LGBT supporters look like bullies when they don't moderate their response to someone who disagrees with them.

Oh so the degree of badness of supporting institutional oppression (you know, systematically removing (violating) the rights of people based on their identity through laws, etc.) is less than that of telling a company to fire someone (which the company isn't even legally bound to do), got it. /s

This right here is why tech is so white/male/straight/etc. "Oh the other people should stop being bullies and just let themselves be oppressed, the people doing the oppression aren’t the bullies, those are just their opinions, we should just let them continue to oppress people."

Let's put it this way. The LGBT community has been oppressed for basically their whole life. So yea, when given the chance, they are going to try to oppress the people who are continuing to systematically oppress them, where do you think they learned that from. If he was willing to apologize, it probably would have been fine (since when has a gay guy apologizing for being gay gotten him his right to marry someone?), the bully here is Eich, he just got called on it this time.

Revenge never works.

It isn't revenge, it's self defence, this guy still believes this, and is now making more money. It seems likely he'll do something similar again.