First of all, they have a large order of trucks from Amazon so they have guaranteed volumes. Second, the thinking that only one car manufacturer can thrive is self evidently false since we had for years dozens of car brands.
Third, they don't really compete with Ford, they compete with Land Rover and Jeep and they are the first brand to bring something to that segment of the market that's electric.
Plus I've seen the car and it's an awesome vehicle, I have no crystal ball but I'm willing to bet they'll do well.