TY for (re)posting this, 'tis true, gotta know your enemy.
I have posted this many hundreds of breads ago, so it is more than worth mentioning it again.
I for one was glad to have found it, even if it was no fun read. Still, it was a better read than 'Behold a pale horse', another one of those must've read thingies.
A clear follow up piece on this Brock thing is the Saul Alinsky book.