If they were monopolists they wouldn't have to coordinate anything.

Please explain. In which districts in the United States are neo-Nazis affiliated with Stefan Molyneux, David Duke (former leader of the KKK), and Richard Spencer (who was videoed performing a Sieg Heil) up for election, as challengers or incumbents? I was not aware these men were employed by one of the two major political parties, or even one of the two smaller ones.

If the specific figures being banned are not affiliated with any candidate for election, even under a minor party or for local office, how is this "election interference"?

Someone doesn’t understand the terms “election interference” or “monopolists”.

People doing political things you don't like is not election interference, anymore than some billionaire bankrolling right-wing SuperPACs is election interference.

Elections aren't held in a vaccum. People 'interfere' with them by persuading, spending money, and by choosing to give political ideas access to their platform.

Media agencies 'interfere' with elections all the time, by exercising their discretion for the last point, and by actively agitating on the first point.

And why would de-platforming racist white nationalists interfere with the election, anyways? Is there a racist white nationalist on the ballot in 2020, who will be hurt by this?