Vastly delusional? Maybe not as much as you may think. I have run into the type of people he describes when I lived in the Twin Cities area of Minnesota. While the numbers may be lower than what he believes, the numbers are sufficient to cause some real trouble. But what will compound it are politicians - elected and those posing as police chiefs - will give cover, aid and comfort to such punks. Think New York with DeBlasio, Minneapolis, San Antonio, and even now Houston. It’s already happened in Baltimore.
The rioters are paid, and their rioting is carefully planned and organized.
They are very, very few among the population at large.