ICE and EV are two market segments. They are partially substitutable, but for many ICE customers an EV is a non-starter because of charging infrastructure, which means that if one of those customers needs to replace their ICE vehicle, they need to replace it with another ICE vehicle, and cannot take advantage of price drops in new EVs. (I ran into this personally; I wanted to get an EV, but my garage does not have a charger, none of the circuits near it could support a charger, and so I need to rewire my house and get a main panel upgrade to do more than L1 charging.)

Likewise US and rest-of-world are different markets because of trade barriers.

Within the EV market segment, the resale value may be plummeting because new car prices are declining because of improved technology and higher volume. Someone who is replacing their EV or looking for a new one already has the required charging infrastructure, otherwise they wouldn't be looking. But this price drop affects only other EV buyers, because ICE buyers cannot take advantage of it.

This insulation lasts only as long as the price differential between them remains less than the capital costs of getting a L2 charger and associated electrical upgrades.