For starters, I'm not depressed.
Secondly, this isn't about picking sides. It's about basing decisions on facts, as opposed to lies. Some few conservatives still base their policies on facts - and I actually agree with these sorts of politicians quite often. The radical, almost wholesale conversion of the American Republican Party into conspiracy theorists, demagogues and liars is a relatively recent phenomenon, catalyzed by Trump - though this change would likely have occurred even without him albeit not quite so rapidly.
If you're able to watch PBS, check out Firing Line hosted by Margaret Hoover. She's staunchly Republican and abhors Trump and - though I think there's little scope for this happening - like Adam Kinzinger, she remains in the party, hoping to change it for the better (my take is that this is nearly impossible and that they'd be better served voting for centrist Independents or if they can stomach it, Democrats).
Agree about posting here not changing things, much - but to the extent that we're engaging in conversation, that's at least a start.
As for misinformation, yes it's everywhere. And figuring out how and when to regulate it is going to be exceedingly difficult, but not impossible; indeed, numerous social media platforms have engaged in ad hoc measures along these very lines. But absent actual government regulation, there's every chance that America will slip - at least for a short time - into fascism; and this last remark isn't hyperbole - our former President did nearly everything in his power to overturn a free and fair election because the outcome wasn't to his liking. And the subsequent misinformation he helped spread about voter fraud and a supposedly stolen election have convinced the majority of Republicans to distrust election results and to seek to put into place measures that will ensure an outcome they prefer, whether free and fair or not.