Pikurisu: He's still free to be a bigot if he wants. He can use his severance pay to fund all the efforts to limit the rights of our fellow citizens that he wants. He just can't be the CEO for Mozilla at the same time because Mozilla doesn't want someone who would be willing to do something like that to be the CEO of their company.
This argument that you're trying to make that people should be tolerant of bigotry is ridiculous. Would you make the same argument for racists who believe that blacks should be slaves? Or how about misogynists who think women shouldn't be allowed to vote, work, or own land? Is your tolerance for hatred limited to just bigotry towards gay people?
And by the way... the changes to laws that have been sought by the gay community, their friends, and their families have been to prevent discrimination or to repeal laws that legalize discrimination against gay people.