This is nonsense, because the battery packs are already cheap enough. The value of savings from cheap battery packs is simply not being passed on to the end consumer, because the car companies and dealerships can get away with not doing so.
It doesn't matter if Ford or Tesla builds battery packs for $90/KWh and the engine is 2x cheaper than the ICE car, if later on it is marked up appropriately to be sold as a luxury good.
NONE of the battery packs in current EVs cost more than $10000 to make, for ANY manufacturer. Which means they are pricing the econoboxes that contain the batteries at $30,000, which is ridiculous.