>I have a hard time accepting, as a leader, someone who goes out of their way to donate to an anti-gay campaign whose aim is to do nothing other than deny the LGBT community something out of spite. It's not his beliefs that are the issue; it's that he's trying to impose them on all of society.
I wouldn't really say "imposing" is the right term. I think "trying to impose" something on all of society would look more like something along the lines of bribing politicians. Instead, he donated to a campaign that aligned with his belief. Aren't campaigns a mode of free speech by which people can get their message out there? Moreover, aren't beliefs (at least strongly held ones anyways) supposed to be something that a person is willing to speak out about? So, If you claim that he can hold beliefs but that he shouldn't be allowed to speak about them, then it really does become a situation where you deny his right to hold his belief.
Also, isn't a society a collection of people who try to figure out what rules everyone should play by? I like to think of these rules as a sort of LCD, something that everyone can agree on. And, as the members try to alter the rules, they also alter the LCD. The catch is that if one of the LCD "rules" is being reviewed, one side can't just shove it down the other's throat. If that happened, then the LCD would cease to be a LCD and society would then be torn apart. That's why a proper exchange of thoughts is important.
That, I think, also means that the exercise free speech should be accompanied by the willingness to dialogue in a respectful manner with people with opposing views. "But", you say, "he refused to make a public statement on his donation." I think it doesn't matter because it's hard to have that sort of meaningful conversation with a crowd/mob. So, while boycotting Mozilla is fine and all, I think the best course of action would still be a one-on-one discussion. Luckily, it seems like he is doing that at Mozilla with his coworkers.
Finally, this is a separate point from the one above, but if someone claimed to hold a belief but was unwilling to defend it in public, wouldn't that be telling about their qualities as a leader? Shouldn't a leader be someone who is willing to take the vision of his followers, hold fast to them, and proclaim them to the world no matter the circumstance? So, assuming we believe his statement about the separation of his personal beliefs and Mozilla's goals, wouldn't that actually lend credence to his ability to lead?