No it’s not. He has built not one, but two, but many multi-billion dollar organisations.
To pretend he’s some kind of scammer is delusional.
In fact, a fun story:
the US government gave Tesla almost $500 million, and when he was asked directly whether that loan saved the company. he says no.
what saved it was a $50 million check from Daimler in May 2009. (all of Tesla was worth $550 million then.)
"they were the only ones. there was no other company, no other entity of any kind from which we could get investments."
Tesla repaid the government's $500 million with interest and a prepayment penalty, ten years early. he sent a thank you note with it.
"i don't like having a lot of debt. the taxpayers supported Tesla, we ought to repay them as soon as we can."