debris cautions can be a pain in the arse but its a product of oval racing. You cant leave a piece a sheet metal out on the track. As well, dont look at a caution as a break in the racing, look at it as an opportunity for the drivers to work on and fix their cars, and as a time when a strategist can work his magic. Having guys take two right side tyres and other guys behind on four fresh tyres is interesting to watch. Same thing with fuel strategy, can you eek it out an extra couple of laps?, if you can you win the race if you cant you'll probably end up a couple of laps down.
generally week from week the quickest driver/car combination/with the best pit stops/communication/and ability to keep up with the track will win.
I dont get your comments about americans not being purist racers. Ive just never seen that myself.