That's not clear at all from the long-term habits of American consumers. Why did Ford, GM, and Stellantis all cut EV investment and increase ICE investment in the last year then?
We're seeing a moores-law-like improvement in electric cars and their power densities. If the American car manufacturers don't want to be a part of that progress, it's on them, but Asia and Europe will continue to innovate in that area and the US will be playing catch up because they're servicing what consumers want now, not what they will probably want in the future.
In the short term cutting r&d, killing off "not yet profitable" lines etc all lead to improved results this quarter. Who cares about 5 years, or 10 years from now?
If you look beyond the US then you see EV market share growing year on year. Yes, the US is resisting hard, but you can't hold back the tide forever.
Kodak invented digital photography, but kept going with film. In the end the world moved on, even if they didn't.
50 years from now ICE will be a niche market. And if US producers want to own that niche, well that's great. But it'll be a tiny fraction of what they are now.
EVs are roughly at two thirds market share in the largest car market of the world. The third largest market has them at 20%. Funnily enough, India (4th largest market) is slightly ahead of the US for EV adoption in passenger cars.
ICE cars will be a niche market much more rapidly than 50 years.