I’d assume it’s because Tesla were one of the first to mass market EVs, and Musk’s pandering made them seem like a good, progressive bet. Once people were locked into their purchase they don’t like to admit that they might have made a poor choice. Or they were aware of the build quality, but figured that the brand was a safe bet, that they’d improve over time.
It’s amazing what humans will get tribal over.
chokes en Francais