Even if Chinese EVs can't make it into the American market in numbers it's a pretty clear signal that Tesla models are vastly overpriced for their functionality. The subsidies have spurred innovation and do continue to artificially depress the price of vehicles, but the value you're getting for a dollar in Chinese EVs far outshines Tesla without any of the weird built-in design annoyances needing to be present like the door handles or terrible dashboard UX.
Tesla will continue to rule the US for the next two years due to the admin but the Euro and Canadian markets are likely going to continue to close to them. It might be that home-grown competitors will step up to the plate or maybe they'll open their doors to Chinese exports - it's hard to say. So while it's hard to identify a winner, the loser is clearly Tesla.