A sizable part of the population thinks holding down a liberal senator and tazing him is Based and are only upset that they can't take part. A sizable part thinks if the police tackle you and slap cuffs on, you must have done something to deserve it.
This isn't an issue of people being too stupid to understand what's happening. This is decades of fascist propaganda from the right and decades of liberal cop-worship politics on the left all coming due.