The 9/11 attackers walked through the scanners with knifes.
The Boston bombers were flagged, but still traveled freely.
After both attacks people were laughing at the stupidity of the enforcement agencies, uselessness of the TSA, etc.
Here, the process worked.
His account is subjective, everyone else is an idiot, he's way smarter than them, gets offended by simple questions about religion, etc. OK, good for him. The more you push back, the more self righteous and arrogant you are during security checks, the deeper you're digging yourself in. Those people are doing their jobs. Same with how you should be treating waiters, etc.
JetBlue has the right to deny you a flight. ElAl does this all the time, incl. racial profiling. Good security track record.