Manufactured hate in the Alex Jones sphere concentrates pre existing fears and the feelings of betrayal in the poor folks who sacrifice for the American dream with time effort and money but end up with nothing. Lieing for profit works. PT Barnum said a sucker is born every minute. The real suckers don't want to identify as suckers and sometimes double down. They are already angry so why not double down with violence.
Lies about;
Pizza Gate, Sandy Hook, Hillary murders, the big lie...kitty litter, yet the truth is called fake news.
Taking advantage of the suckers who have been had is easy - there is a mob waiting for orders, this time from Trump. In 1930 it was someone else.