The other problem is of course that Piltdown Man was only one data point out of millions. It’s one thing to show that a single data point was fraudulent. But claiming that millions of other data points must also be fraudulent is a leap of logic that is simply not justified in any way, shape or form. It is blowing the extent and significance of the one single data point completely out of proportion, which is basically a form of lying.
Which is why I liken those claims to the ramblings of a parrot.