I think you are ignoring an important part of this question, which is what is going to happen in India and Northern Africa, where most of the population growth will take place over the next 50 years. I don't think these countries can afford an 'economy' EV, or widespread infrastructure to support them, certainly not in the near term. India is certainly making some encouraging moves [1], but your comment seems quite too optimistic and Western-centric.
[1] https://www.bbc.com/news/world-asia-india-58977080