The argument is mainly false, because regular democracy already recognizes that the masses are morons, and does not let them self-govern.

It's a kind of theatre whereby we elect certain representatives but the vast bulk of the government bureaucracy stays the same.

Trump and Co. are testing/challenging that system in a way: they are trying to wrestle power away from that immovable mountain of bureaucracy, into the hands of the elected government, and that bureaucracy, used to taking their immovability for granted (along with their jobs and budget money) isn't liking it.