Perhaps. And I wouldn't be surprised if Detroit are part responsible. The Big Three might have lobbied for tighter restrictions on sedans, knowing the end result would be more people driving truck-like cars that, at the time, the Big Three were better at making (than foreign car makers).
UAW labor makes Big Three sedans prohibitively expensive. The end result is that nobody wants a Big Three sedan for two reasons: (1) Japanese and Korean manufacturers build better ones, and (2) when compared on the basis of a monthly car payment, there’s no reason to buy a crappy sedan if you can get a small SUV for just $20 more per month.