>By the time they're using these extreme powers to smother dissent, you're fucked. It's game over and your ability to speak out using the first amendment is non-existent.

This is how revolutions are started. There's no "game over." A population always has the option to rise up against their brutal regime. Especially in a place like the United States, where individual freedoms are highly prized and there is a rather large contingent of heavily armed and often angry population.

Revolutions are much easier in homogeneous populations than they are in ethnically diverse ones.

I fear that if there is a violent revolution in a society as socioeconomically and ethnically diverse as the United States it would result in a civil war. I have no idea how that would play out in a country as developed as the United States but I don't think it would be pretty.