The original purpose of these laws was to prevent a manufacturer from selling direct in a market that a dealer had developed. The dealership model allowed manufactures to expand much faster and with less risk than if they had sold direct everywhere. Once the dealers developed the market, there would have been a large incentive for the manufacturers to simply open up a local direct outlet and keep all the dealer commissions themselves.

Tesla has never had a dealership network, so I don't see why this should apply to them. But that is why these laws came to exist.

And yet you can still buy Apple stuff at any major retailer or high street store. The retail lobby doesn't seem to mind much.

think of Bell or the oil companies of the early 20th century.