My guess is that you’ll rarely find this as it’s not a protected characteristic under the law (and, as far as I can see, CoCs essentially follow discrimination law).
> None the less, the harm is in that it empowers exactly the same group of people who got Eich fired in the first place.
But Eich wasn’t fired, he stepped down and resigned of his own volition. Both he and others at Mozilla maintain this version of events, and it’s — as far as I can see — uncontested. You seem to be saying that you want a code of conduct that explicitly prohibits protest against political opinions. Good luck with that.
> Much like progressives try to "de-platform" conservatives
This is a myth: “Deplatforming” is neither exclusive nor even particularly prevalent on the left.
> to doing shit like changing master/slave database terminology or even more insane, changing blacklist/whitelist terminology
Fighting against such nonsense seems eminently more sensible (and more winnable!) than fighting for the prohibition of political protest in codes of conduct.