I have to admit that I have reached a point of helpless apathy in regards to this topic. I had already concluded that American democracy (and by extension that in much of the west) was probably a dead man walking back in 2016, both because of the Trump victory and the "not my president" protests following it. The 2020 insurrection just confirmed this.
You simply can not run a democracy if people do not believe that the results of elections are beyond doubt. It's like running a monarchy if people don't believe that you can inherit power by blood. The whole succession of power becomes unworkable. In my mind the fatal mistake was probably not implementing some kind of "new deal" after the 2008 crisis and the failure of the "Occupy" movement. That led to a situation where the only perspective for any kind of "better world" for most people came from the right (however unrealistic it might be) and the left was forced to play the part of "leave everything as is, but maybe a bit better in some places (if possible, maybe not, we will see)." That is like conceding the initiative on the battlefield and lead us to the present situation.