The way the wars fed back into american policing, the justifications for the drone assassination program (but not here! not quite yet). A lot of what we're seeing now is the natural endpoint of processes that were started under bush "in reaction" to sept 11 and expanded under obama and later biden.
The main stream of the republican party has been, first quietly but then openly, fantasizing about authoritarian control for 25 years. And through that whole time the democrats have made it one of their biggest priorities to help them construct the apparatus needed to accomplish it. And our allies have been eager to get their hands on these same powers & systems to apply to their own citizens.
Honestly looking back the biggest mistake I made was that I thought the things that are happening now would happen in bush's second term. When they didn't I took seriously the possibility that I was wrong about the bloodlust of the american right, sincerely spent many years convincing myself they were in working in good faith towards what they understood was best for the world. I had it right the first time. For there is no truth in their mouths; their hearts are destruction; their throats are open graves.