Simple. Musk steps away and the company issues a full statement distancing themselves from Musk and his politics. Tesla negotiates an end to its fights with the unions in Europe. Stop focusing on the Cybertruck and start making an updated Model 3 and a lower priced Model 2. Maybe push out a new Model S to take on the high end market while you're at it. Perhaps do some sort of marketing campaign to highlight that they're now just a cool car company again.

People in Europe still like Tesla the car, and would happily start driving them again given some incentives.