Nice write-up, but misses the mark in several places. Trump did very little, if anything, to damage the nation. The damage was already done through subversive deep state and overt attacks, constant negative coverage, COVID-19 measures, and the rigged election with accompanying failures of courts and legislatures. Trump was right to pursue the matter. The GOP didn't much care, and his only MSM voice, FOX, not at all.
In the end, Kemp did nothing to help Trump, so if he loses, he should blame himself. And though a very good right hand man, Pence was almost certainly never going to be the next GOP President. It was wrong to think Pence should make a unilateral decision on electoral votes, but Trump did not instigate any violence in that.
Any supposed fractures in or failures of the DNC are greatly minimized by the efforts of the Dem Media with cover-ups across the board, Social Media being the latest major player. The DNC blamed them in 2016. The GOP did nothing about the coming censorship. The Reps have only themselves to blame for the aftermath. If they don't decisively resolve the issue of election rigging, they likely have no future to speak of.