I say let parents do what they want, it's their dime and can't take it with you. I do get what the OP is saying though as far as competition goes. The blame needs to be shared by all: the parents, clubs, leagues, districts and USA Hockey. It's all about the $ money not the competition of play.
Who said the path to the juniors goes mostly through AAA? I strongly disagree, for ex the LVPY have been putting multiple players in the Juniors every year for years, up and down the East coast and I know of some that went to the Midwest, and as far as Texas. They are 1 of many clubs that do that.
As for NCAA D1, Hockey: about 3.2% of high school players make it to D1. They are not coming from the AAA programs we have in the area. I have over 40 yrs in the game playing youth through college, coached college club hockey for 5yrs, spent 2yrs as an assistant in the ECHL and refed for over 16yrs. I still keep in contact with pretty many college coaches, even some NCAA D1 coaches and trust me they aren't busting down the doors of local AAA players. At one time AAA in our area was legit. I refed AAA games the past few years that had kids that skated like low A player.