You are partially correct. The US is absolutely positively on a downward spiral. And Trump supporters with their intense fuck the virus attitudes and behaviors are definitely making the downward spiral not just a little worse, but a LOT worse. And at this point there is no other explanation other than they are intentionally destroying the US. Why? Who cares. Their view of the world is losing, and they are throwing one hell of a temper tantrum.
So yeah there is a lot of bad stuff going on. But individually there are things to live for. I don't know what you love to do - but this is absolutely the correct time to be doing it. For me it's my wife, chess, WOW, and entertaining my grand daughter. Well that's four things.
When the news is too intense, just stop tuning in. When you recover the news will still be here. <Just make sure to vote Biden / Harris!!!>. And in the meantime focus on the things you love, which ultimately are the important things anyways.
And one more thing: eat healthy, and get at least weekly but preferably daily exercise.