If the grade based competition does not fit within your ethical arena, then simply do not have your son participate in the grade based system. There are plenty of tournaments that have the age based categories that clubs can participate in other than the WSYL. But to participate in something and then complain about that system when you know the rules up front is a cop out by adults. If you know the rules going in and agree to play, then STFU. You have no basis for your tired, sorry whining.

Now if API too has a holdback(s), then you are really a waste of space. Maybe you can add a safety pin to your hat so no one will cheer too loud for their team when they play the high priests of API.