You shouldn't be so dismisive. Tesla's battery technology is superior.
If indeed other countries were so into EVs, as you claim, one must wonder what is lacking in the other countries that all their years of expertise building EVs for the general public, they weren't able to replicate Tesla (which at the time was quite the ragged automotive startup) and its energy management system.
Teslas strong dominance in the EV market is quite US-specific it seems. E.G. in France Renault sold more cars, and Peugeot is head to head with Tesla. In Germany VW sold multiple times as much as Tesla. In China BYD sold more than Tesla etc. (all BEV, not plugin hybrids).
If indeed other countries were so into EVs, as you claim, one must wonder what is lacking in the other countries that all their years of expertise building EVs for the general public, they weren't able to replicate Tesla (which at the time was quite the ragged automotive startup) and its energy management system.