To be clear, I'm not supporting damaging random Tesla's, just answering the questions asked.
> who's going to buy it? Nobody would want to own a molotov magnet
If nothing else, it has value as parts.
> In the end it'll be hurting my wallet and not Elon's because I have to junk the car and buy a different brand.
It hurts both. Nobody is going to buy Tesla is what they can look forward to a string of vandalism and eventually having to either sell it for a song or scrap it for parts. Tesla/Elon may already have the money from your current purchase, but destroying the second hand market and otherwise making it painful to own one reduces demand, and that hurts Elon's wallet.
Elon's power comes from his money and his position at the head of these companies. Take that away and you take away his power. Or maybe he realizes before that point he's fucking himself and changes course. Either one probably seems like an improvement.
> who's going to buy it? Nobody would want to own a molotov magnet
If nothing else, it has value as parts.
> In the end it'll be hurting my wallet and not Elon's because I have to junk the car and buy a different brand.
It hurts both. Nobody is going to buy Tesla is what they can look forward to a string of vandalism and eventually having to either sell it for a song or scrap it for parts. Tesla/Elon may already have the money from your current purchase, but destroying the second hand market and otherwise making it painful to own one reduces demand, and that hurts Elon's wallet.