This has been repeatedly debunked,
but, of course, since it is one of the core assumptions of liberalism,
it really CAN’T be refuted in their minds.
That core assumption is that man is basically good and it is his environment that makes him act in evil ways,
and that if only the right people were given enough power to change that environment,
the people would all act in their basically good way.
This is the CORE assumption of the liberal worldview,
and since it is accepted as a given,
no amount of evidence to the contrary can convince them differently.
For those poor unfortunate folks that didn’t get the pleasure of living through the Peanuts Carter presidency, you summed it up perfectly and we are living through it again.
Didn’t work the first time, not going to work the second.