Arg, this is so silly. Car batteries were never going to be a huge market, and if at all we need cheaper and smaller EVs, which of course also require only smaller batteries with likely a lower profit margin.
Yet there is a huge, largely untapped market of stationary batteries. Both at utility scale to stabilise grids that are mostly fed by renewables, and at household scale. Every home with solar pannels should also have a sufficiently sized battery pack. It's a real added benefit, especially if utility companies would finally offer electricity prices based on demand over the day to private end users.