Because the big three, at least GM is making a lot of money? I think the problem here is, like you, you refer to the failures of GM, yet GM is doing absolutely fantastic with record earnings but you are against them because they are slow to launch an EV?
Are you denying that the ICE is a way to power a vehicle that Americans love and Musk doesnt have and maybe he should?
and ... a product like Musks is forced on the taxpayers money being taken and given to purchases of his cars?
Yet, even with Musk, his ONE truck, YEARS BEHIND schedule far more than the big three but somehow that detail is left out?
Hopefully this helps explain an answer to your question.