EU is not really an export power in any meaningful sense
Are you sure buddy? The only powers who can compete with the EU by value are China and the USA. Come correct if you are going to bother at all.
Every block is free to run their internal economy as they see fit but every other block is also free to set rules on what it determines to be illegal state aid. Sticking to the example of cars but this is also true for other Chinese industries, the whole point of the Chinese illegal state aid is to corner the international manufacturing market degrading competitors manufacturing ability before then increasing the price to profitable levels.
Europe does not need to emulate China because China is not winning in any meaningful sense against Europe. China points to its impressive year on year GDP increases without acknowledging the low levels it started at. EU GDP per capita is still 3-4 times Chinese so even at their rapid rates of growth they will not come anywhere near EU levels in our lifetimes. This is before we even consider the difference in quality of life, Chinese workers regularly doing 996 schedules with the EU having a 40 hour workweek. The EU also has a better social safety net of unemployment, pension benefits, medical, worker legal protections, food safety, I could go on all day here.
The EU dependency on Russia for energy could have been described as stupid, the current dependency on the USA is a direct result of this previous bad decision and will not be rectified overnight.
he EU kept paying lip service to the idea of going green, but refused to invest into stuff like wind and solar because it came from China.
What are you on about, the EU has purchased more than 50% of China's exports of solar panels and wind turbines , with 98% of the EUs solar panel imports coming from China. When you need to make stuff up to back up your point it's probably not a very good one.