The US spent decades admonishing the world's nations to open their economies to global trade, which led to the greatest wealth creation ever. It's mind boggling that the US now believes that barriers to protect their economy from competition are suitable.
Yes, China subsidizes and sanctions various segments of its economy, as all planned economic models do. But liberal economies do exactly the same using different methods, often for the sake of protecting industries of national interest, like automobiles.
Rather than taxing Chinese EV imports, western nations could instead require the formation of local joint ventures, modelled after China's requirement for all foreign manufacturers, except Tesla. Level the playing field instead of slowing the transition to EV.