“If that is what cheerleading has come to for many...”
No, that is what cheerleading is.
Competitive team sports are less violent imitations of warriors fighting in battles. Girls who cheer them on are in effect, displaying themselves to be chosen for marriage or at least sexual use by winning warriors or players.
In the good old days of real battles, if their team lost, they might become slaves for the winners.
This is really primitive stuff. And while girls might be biologically compelled to display themselves to desirable males, there is not a whole lot of Christianity going on.
In the old days Daddy still had to approve, not the case these days.