NIO in California

What are the drawbacks of NIO or any Chinese car manufacturers signing a deal with Gavin Newsom to build a plant and sell cars in California? Gavin is a huge fan of EV. He personally met Premier Xi while in China and also toured EV plants. They also met in San Francisco during a summit. Gavin really wants to push EVs in California and is no fan of Trump so he may try an FU, never know.

I’m sure there a lot of logical reasons it won’t work, let me hear them.