As if we needed a sign that political correctness is its own form of madness, in Britain the Muslims and their enablers are more vocal and agitated about the Manchester railway station terrorism drill in which the simulated attacker shouted 'Allah Ackbar' than they are upset about an almost identical attack in Germany.
In other words, prepping for a real-life scenario based on current real-life events is being condemned.
I think it was a French reporter who went deep undercover into terrorist cells. He quickly discovered that the majority of the recruits knew next to nothing about Islam before, during or after. They were clinically mentally ill, heavy users of drugs, and/or garden variety criminals.
Pick up a copy of True Believer (1951), written by Eric Hoffer. He goes through a historical analysis of mass movements on an agenda and how people fall under this fake and fraudulent enthusiasm. He describes in perfect detail how a guy could wake up some day feeling that nothing had been accomplished and his life was worthless, and some guy could easily pick him up and brainwash into doing some act of violence. Hoffer’s book was mandatory reading for Eisenhower’s staff after he read the book. Almost seventy years later, the book lays out how this madness goes from zero to sixty.