The $40k truck prices are definitely Tesla's "fault." Ford "had to" match the Cybertruck's advertised price, then Chevy had to match Ford's price.The problem is Tesla had to compete with practically no one(in the EV space) and Chevy has to be at least close to Ford in terms of pricing. Also Ram will be there soon.
So, now, there are three base EV trucks at ~$40k and there will only ever be a handful of them sold at that price across all three companies. A handful of Lightnings, probably zero Silverados, and almost certainly zero Cybertrucks.