Tesla built GF1 in the Reno desert because, at the time (2013) [1], they forecast that at 500k/vehicles a year (which they're almost at), they would be consuming worldwide battery cell manufacturing capacity. And here we are with everyone else playing catch up trying to eek out the batteries they need to deliver EVs to compete against Tesla.
[1] https://www.tesla.com/sites/default/files/blog_attachments/g...
Well you wouldn't have to worry about this regardless unless you are the competition. But otherwise it's like saying "I'll worry about EVs when I can charge them in 3 minutes at every corner". If you worry only when the threat already materialized then it was pretty short sighted. Which is an ironic attitude considering we're literally talking about companies ignoring reality until it hit them in the face and the threat materialized.
Demand ^ Emphasis mine.
To date, EV sales are still a bit of chicken-and-egg, and Tesla does have a clear charger network advantage in parts of the world. But EV sales are a very small fraction of overall automotive sales, and until that changes, any doom and gloom on the traditional automakers is still exaggerated.