He didnt found PayPal. He founded an early competitor to PayPal that merged with it, giving him huge equity in Paypal itself.
If you want to talk manufacturing and vehicle dynamics, he also founded Telsa, an electric vehicle company, and SpaceX, a Spaceship company. Anything about those two vehicle manufacturing companies that might lend you to believe he knows something about manufacturing and vehicle dynamics?
He undoutably doesn't have the concept fully sorted, but at least vilify the man for actual faults, not ones you want to make up.