Absolutely not. YouTube came to fame 100% because they made it easy for you to embed your own videos inside of a webpage. This was an incredibly difficult fear at the time that required specialized flash players, conversions, and what not. That’s why YouTube came to exist.
Many states have laws preventing direct to customer selling. Tesla works around this by just not selling in those states. If you live in one of those states and want to buy a Tesla, you pick it up in a neighboring state that does allow direct sales. Or these days they may have a better workaround where the car is officially purchased elsewhere but you don’t have to physically travel there. This is totally above-board since states are not allowed to regulate interstate commerce, so state laws against direct sales necessarily can only apply within the state.
User-generated content platforms have had a very specific legal obligation around copyright for decades, which is that they must comply with DMCA takedowns.
With Tesla, I've no idea if there are laws preventing direct to customer selling, the "land of the free" has a lot of laws preventing freedom.