Because of lawyers!
Any effort to not hire & they would be lining up for a big payday!
The best thing for American civilization that Elton Musk could do is load up (overload!)his first Mars colony ship with American lawyers!
Have it miss Mars and hit the Sun!
Public Enemy #1 - Attorneys.
Public Enemy #2 - Pubic school teachers.
Public Enemy #3 - Media Mouths