It only works with Teslas, forget the other ones. That's part of why the others have failed to deliver a useful EV: only Tesla has a reliable charging network. The others are reliant on half assed solutions made by third parties.
Yes, that's why most of the other brands have announced the will use the Tesla port, to be able to use their charging network. There are still issues with that approach because all Teslas have their charging port on the back left side and their Supercharger cable is quite short, while other cars do not necessarily maintain this. Also they might not charge at full power. It's still a better solution than the half assed ones.
Branding matters, as people do tend to buy the image almost as much as the capabilities.
Musk is inextricably tied to Teslas brand.
All good when he was ‘space Howard Hughes (pre-hypochondriac shut-in)’, since that brand resonated with people with money who were going for the ‘better future’ image.
Now his antics remind everyone of their asshole racist uncle that they can’t stand. Not a good brand association, as asshole racists uncles aren’t as popular with those with a lot of money.
Which part of Europe? See the map. If it's SE Europe, Cyprus or the Baltics, you are basically screwed. Western, Central and Northrn Europe (the populated areas) not so much.