It is a good thing that Tesla got and is getting subsidies same for solar panel and most other renewable tech. Without it China would be the leader in electric vehicles. Looking at how cost of batteries as well as solar panels is decreasing every year. China dominated manufacturing with cheap labor in the last 20-25 years. And as more automated manufacturing comes online it would have dominated that as well as they would have cheaper electricity and transport.

Forget pollution etc with the current trajectory electric cars and solar electricity will keep getting cheaper so if US and other countries do not subsidies and promote manufacturing now they will become uncompetitive in the near future.