It's completely possible to build an EV that isn't connected. The idea that electric power means networked spying is an invented fiction. Due to the privacy-conscious background of one automaker, a vote by the board mandated that all their cars be able to function in a completely disconnected, non-reporting mode:
https://www.wsj.com/articles/porsche-rolls-out-board-approve...
And they all do, even their EV. I voted with my wallet.