The atmosphere is so heated, and the statements are getting more and more extreme. Let’s just assume Harris wins the election. After a campaign like this, how could you ever have a normal relationship with your pro-Trump neighbor/father-in-law/Uncle/Barber or what ever again?
I don’t think Bush ever sunk to the depths of the Hitler-like rhetoric that Trump and his cronies have been using, however. Maybe the guardrails will hold if Trump wins again (or loses again) but this is not normal.
The Bush administration pioneered the theory of the unitary executive, which is the idea that the president can do anything because he is the president. They’re the ones who kicked over the guardrails, they just did it in the context of an endless war that they started. For more on this I recommend Sheldon Wolin’s work.