Do you think that Ford only hires people that have only bought Ford all their lives? They check your car on the way to the interview and if it's not Ford you're automatically DQ'd?

How would that work being a new hire at Tesla considering that they probably pay a lot of folks less than is required to own one?

Cars, appliances, housing, fuel & energy, food, etc. Huge, huge swaths of the economy don't require brand loyalty because it's not reasonable to expect.