Earlier quoted context omitted.
He founded (for some definition) the two most impressive American corporations of the century and tweeted a lot to build a direct connection to people.
What’s impressive about Tesla? It’s already being outcompeted by companies in China, losing market share, and the other manufacturers are catching up. Besides that, he’s pissed off the demographics most likely to buy Teslas. It’s not like most Trump voters are buying EVs
Presumably the two impressive companies are SpaceX and OpenAI? Or maybe the Boring Company?