Finally, I see comment from someone who clearly understands this. Somehow, many people perceive such a threat very non-seriously, as if they think it will never happen, or that someone will come and prevent it from happening.

A second Trump term really is an extinction-level threat to democracy worldwide, not just in United States. Considering that Trump and his supporters promise an isolationist policy, all sorts of predatory authoritarian and totalitarian regimes will suddenly feel like they can do anything - and this will start happening all over the world.