Trump should propose implementing a Fairness Doctrine on all those sites. The very same one the Left has long been whining about wanting to slap on broadcasters.
Watch them howl and wail like stuck pigs.
No need for a fairness doctrine, which would require the government to define “fair”. Simpler to ban them from censoring political content, as with the telephone company. The free enterprisers won’t like this, but the left cannot be allowed to monopolize all the levers of power.
Since Facebook has over a billion users, Google has over 90% of all search traffic, it is easy to say “you’re so big, you’re a utility now”.