-b- writes:

It's so easy, any monkey can do it. The only humans who are functionally
incapable of performing these simple tasks are pilots themselves, because their
intelligence is so impaired they cannot even realize they are the least capable
of doing their own job . . .

It's unwise to lump all pilots together. There are pilots who are too stupid
to handle the complexity of a large airliner, of course, but they are a
minority. Flying an airliner isn't sufficiently different from flying a small
airplane that someone too stupid to handle the former would be likely to be
competent in the latter.