Tesla has 80-90% of the electric vehicle market share in the USA. The traditional carmakers have failed to make good electric cars. This seems likely to continue for the foreseeable future. The cars that have been announced will not get ahead of the vehicles that Tesla will be making.
The twitter link you provided is FUD. or fake news.
All the German links you provided compare Tesla being an EV car manufacturer to companies that manufacture internal combustion engine cars. There for your conclusion is useless. Considering Tesla owns 90% of the Global Ev market !
Lastly something for you to consider is that Tesla has no over stock of cars sitting in a lot waiting to be sold, intact they there supply can not meet demand.
The links you provided of internal combustion cars show the amount of cars being produced, Not sold and conveniently leave out the millions of cars they don't sell per year that are sitting dead in some parking lot. There is also no supply issue with any other manufacture other then Tesla because the demand is to high !
Tesla Could Become the Largest Global Car Maker by 2025