The changing (downgraded) data on that over the decades alone discredits the movement. Then there are things like the Katyn Forest Massacre originally credited to the Germans now, over a half-century later, credited correctly.
It's kinda like the faulty notion that modern Middle East terrorism was first initiated by muslims when in fact it was the King David hotel bombing brought to us by you know who that first initiated the ME into such activity.
Factor in the Lavan Affair, the USS Liberty and a few other known catching them red-handed, and it definitely should make everyone wonder how many past such actions were really carried out in grand false flag style. I mean how much of a rube does one have to be to think that only those in which they were caught red-handed were the only ones.