A Jewish guy providing proof the Official Story of Auschwitz was as screwy as every other Official Story was more than they could bear. Please notice nobody is denying the halocaust happened. The politically convenient parts used to re-traumatize Jews every time the subject comes up turn out to be false. It was an instance of ultimate horror regardless.
The planes and hijackers parts of 911 also turn out to be false but their political usefulness determines existence to a higher degree than factual evidence can manage.
"Reality" based upon political usefulness starts out as a lie and becomes totalitarian no matter how convincing the rationale.