I don't think anybody's contesting Eich's right to not get gay-married. And likewise, nobody's contesting his legal right to try to strip a civil right from gay people through California ballot propositions.

But I don't think one can to try to harm gay people and then expect to have no problem becoming the boss of a bunch of them. They have a right to express their opinions too.

I also think your live-and-let-live stance only works as long as others share the same view. Eich's donation is just the opposite of what you advocate: he refused to live and let live. Would you still be calling for tolerance if Eich were working against interracial marriage, or against letting black people vote, or working to have the Catholic church made illegal in America? I'm guessing not.