The relative lack of cheap EVs is not indicative of low demand, it's a sypmtom of demand that far exceeds supply.
If you're an automaker, why would you sell an EV for $30K when you're still selling out of $60K EVs? When automakers are supply constrained, there is no incentive to cater to the bottom of the market. They're going to sell the most profitable vehicles they can, which tend to be higher priced.
That's the point I tried to drive home here--we don't have a demand issue right now. We have a supply issue. We've had a supply issue for a long time, because automakers have continually under-estimated EV demand at all price levels, and thus, failed to adequately invest in EV production capacity.
You'll see cheaper EVs once our ability to produce them finally catches up with demand.