"Americans voted Trump out of office, but instead of accepting that result, he has sought to overturn it. By inciting the violent occupation of the US Capitol, Trump has given up any legitimate claim to power. In 14 days, barring catastrophe, he will be out of office. The only question is how much damage he will do in the meantime — and we know, based on long experience, that his Twitter and Facebook accounts will be among his primary weapons."
Taking away some ability to incite violence would be a good step.
Platformer
Update (1/7): Facebook bans Trump for his remaining time in office right after congress confirmed the electoral college votes and the Georgia election determined Democrats would control Congress.
Update (1/9): Twitter permanently bans Trump. And all attempts to use related accounts.