The MAGA movement of 2016 billed itself as an anti establishment movement. Contrasting itself from traditional Republicans and the Democratic party. It promised to “Drain the Swamp”.
Their success is indictive of a discontent with the state of the government at the time. They targeted the blue collar demographic promising stances on issues that’d help them.
Here’s a video on a county that voted Democrat from 1869-2016: https://youtu.be/yfxvHqTCy2w
Keep in mind you came to a left leaning platform with essentially no Trump supporters and asked why do people like Trump. Listen to what they cite not just us.
The friend of certainty is time. One day perhaps then we won’t even call ourselves Americans. I doubt the 1860s will happen again anytime soon. Maybe something closer in scale to Blair Mountain.
Look to history. We’ve had two. Look at the words explaining the necessity of independence in the declaration of independence. Those were not hollow words but detailed a long series of abuses. Then look to the causes of the Civil War. A perfidious institution anathematic to the very core ideal of the nation, that all men are created equal.
Our times doubtless have our problems but the do not meet nearly the standard set in the past.