Umm, Yes we all understand that the entire military is basically support for the infantrymen/marines. But are you suggesting that you would be willing to go into battle with an enemy with an Air Force, such as Iraq had, without air superiority? It’s been since WW2 since that has happened. I can’t imagine any real infantryman who would agree with you.
No question that air superiority is a vital component of the modern battle field (and has been for quite some time). However, with our aerial dominance unchallenged, and with limited resources ($$$) available, priority programs must be identified and funded at the cost of other programs.