People aren't going to replace a perfectly running ICE car for an EV to be "ecologically minded." For starters, that's not an ecology-minded move as throwing away cars is definitely not good for the environment and two, the savings in fuel and oil changes doesn't come anywhere near offsetting the EV purchase price for most people.
When you've reached the point to where you're ready to replace your ICE vehicle and are considering an EV, what options do you have? Trucks and SUVs are the most common vehicles in the American market. Their EV versions have ungodly prices that normal people simply can't afford or will refuse to pay. That leaves you comparing an EV sedan to an ICE SUV or truck. People are choosing the SUVs and trucks - like they have been for the past 40 years.
You'd think major automakers would know this stuff.