I think you need to look at the data before making assertions like this.

> People don't buy American cars

53% of cars sold in the US are assembled in the US versus 18% assembled in Mexico.

> things get more and more expensive. And not by a few percent, more like by 50% or more.

The total cost of manufacturing wages only account for 5-15% of the MSRP of a vehicle. So moving manufacturing from an expensive country to a cheap country only changes the price by maybe 10% due to the impact of wages.