Any ideas for ways to respond to the CEOs who fire workers as petty revenge for an Obama victory?

[magical thyme]

17. if the business provides a needed service or product, boycotts aid competitors

who (hopefully) aren't jerks. So it may temporarily increase the pain for employees of asshats, but if the business moves enough the jobs will follow along with it.

I think most employees recognize they are alone in the voting booth and have no obligation to tell their employer who they honestly voted for. Some of them may well resent the threat. They also know better than to wear Obama clothes, pins, etc. to work.

Any business that fires employees due to the result of an election is not going to last anyway. You hire and fire based on current business needs, not a scenario you fear may come about in a year or two.

I suspect the businesses that threatened and then actually fired already planned to fire and just used the election as an excuse.