Yes, let's undermine the current system by deplatforming those we don't like.
A better option is to have a strong moderator who is able to turn off microphones when candidates go off the question. Make Trump look like an idiot when he only gets a few seconds to speak because he can't put meaningful words together... But Biden would probably have a similar issue.
Or maybe we could get some candidates who are below life expectancy? That might interest people.