Because the electricity to recharge those cars .... but you know.
Yes, we’re all aware that EVs are majority coal-powered.
First, directly compare emissions between ~20 gallons gasoline burned in a small mobile ICE engine with minimal emissions control, vs ~100 kW/h battery charged by electricity produced in a coal burning plant with massive emissions control systems. This is a known objective comparison.
Then, compare vehicle production emissions.
Apparently those combined work out to roughly equal.
Except that extending vehicle lifespans from ~100,000 to 1,000,000 miles means the second comparison cuts EV production emissions 90%.
Yes, EVs aren’t the green miracle some tout them as. Beware trying to construe them as utterly failing just because they don’t reach that ideal. Ain’t perfect, but good and improving.