jokes aside, of course ignorance is pretty much a universal human trait, just as partisanship is. Probably every useful political idea has had its demagogues working up the common folk somehow with it.
The steel from the 9-11 rubble was loaded on ships bound for China, where it was melted and recast pretty damn quick. Ordinary forensic protocols would have demanded some interesting pieces of it be kept for study, as evidence. Of all the facts or alleged facts of 9-11, this is pretty much one of the most damning for the authorities. How irresponsible.
Thermite is known for it's intense cutting power, for being able to literally slice steel like a knife cuts butter. Pack a little around a beam, even feet thick, in the right amount, and set it off, and thee goes the steel. It would have left distinct and unmistakable evidence of the cause of failure of the towers.
If we don't have authorities who have good sense on preserving evidence, we need to fire those officials, and the politicians responsible for them.