There's tons of competition in NA from companies located all over the world.
What China is trying to do is decimate the market by undercutting everyone long enough that they can put them out of business, which is why they're trying to sell them way below cost. Let's see them compete here only using the same subsidies that everyone else gets because once they accomplish their goal, the situation is going to be much worse for us than it is now.
Quite the opposite is happening. EVs from the same make usually are sold at 50 to 100% markup outside of China. It seems more like the international market is subsidising Chinese EVs instead.