You can’t trust corporations to not ruin a product eventually. The reason federation and FOSS is so important is that it strips the power dynamics that typically corrupt online spaces. Is it perfect? No. But reddit didn’t become shitty because of individuals making bad choices, it became shitty because it had to.
I also got my Tesla before Elon went full crazy, and there only recently were a lot of options. Even then, most were waitlisfed for months and months. Tesla manufactures a ridiculously high percentage of the EV market. Most large car companies are still just dipping their toes in EVs.