The narrative that diesel cars are better for the environment, which is pushed by the scientists who found the 11-15 tonnes was disputed by your article. From the first section:

“The Belgian newspaper De Standaard published this claim on their website on the 18th of April. We rate this claim as mostly false.”

Again, even if the cost of b battery production in Germany two years ago was 15 tones, it doesn’t matter. Why? Because Germany made almost no car batteries two years ago, and the grid is rapidly decarbonising - in Germany and most of the world.

Now, if you are arguing that it would be better if people lived closer to where they work, and stopped driving cars altogether - I’d agree with that. But cars will continue to be with us for a long time, and the Sonne we can transition the fleet to electric the better.