I have no idea if this is true - it would be dumb of them simply from a PR perspective - but if so:
Wealthy southern white kids are Republicans, news at 11. I'd have guessed that if asked to pick.
Yeah, same. I think part of it is that: 1.) We're desensitized to crazy shit as a society; 2.) No one really wants to talk about it, whether that's not knowing what to say, not wanting to raise the temperature, or being scared; and 3.) I mean, at the end of the day it was a miss and he appears to be fine. The shooter is dead. There isn't much to talk about now. FBI needs to investigate and we'll see what the impact on the election is (I suspect it was just delivered to Trump).
Simmering low grade violence across the country. Increasing attacks on political figures, journalists, schools/universities, churches, businesses in heavily partisan areas, etc. This will likely come disproportionately from MAGA given both 1.) They are generally more inclined and enthusiastic about it, and better armed; and 2.) They will have institutional support from the feds and GOP state governments.
Society doesn't completely collapse - that's not profitable, after all - but starts to resemble Mexico or Brazil more than Europe, Canada, Japan/Korea, or AUS/NZ.