Well, corporations are people, people have the right to bear arms, and the country was founded on the idea that if you really really don't like your government, violence is an appropriate response to change it. Of course the Constitution pulled the ladder up behind the founding fathers on that bit of political philosophy, but in recent years I've heard some rhetoric citing the Declaration as inspiration for the path they should take now. Corporate personhood adds an interesting twist to things, especially considering that Alphabet or Apple could secede and have a larger GDP than many countries. Alphabet might quickly get labelled a hostile foreign power for all their spying. Apple might start a trade war with their extortionate tariffs but we'd still probably have reasonable diplomatic relations with them.

Maybe 200+ years with only one major civil war is a good record under these conditions, and maybe the next one will have official corporate sponsors.