I can't find a number through Google but the number of Ford Hourly/Salaried employees has to be over 125,000. As a guess.
Tesla has 30,000 hourly/salary employees.
Despite being valued 'less' Ford has a huge economic impact for many peoples lives. This may decline, over time, but don't be surprised if Ford/GM/Chrysler combine forces for a huge battery factory of their own. Their ability to tap capital markets with lower interest rates than Tesla is a competitive advantage. They also move many more vehicles than Tesla and get better prices from suppliers, which is a competitive advantage.
Tesla's gambit with batteries is either going to work or will offer a fantastic opportunity to pickup a battery factory at a good price.
At the of the day, when all major automotive companies have EV vehicles, what's going to differentiate them? The accuracy of the self driving software? Entertainment options within the vehicle? Serious question.