The funny thing about the pro-American thing for me is that is exactly one of things I don't like about NASCAR. It is TOO American.
It is not really all-American. Don't try to tell me it is still not dominated by the South. And its fans are still very homogeneous. That's why they get their own political stamp ("the NASCAR voters"

or sometimes called middle class white men. The bubba image is rooted in truth.
I'll agree that the races are competitive. Lots of cars on the same lap, packed together, and jockeying for position.
As for technology, more technology from F1 makes it to road cars than what is under the shell of a NASCAR car. F1 produced PGM-FI, traction control, active suspension, sequential shifting, far more advanced braking (F1 drivers actually use their brakes frequently), etc.
So we differ. And that's OK.