It's not ICONDOCKER, these are the arguments used to justify every act of discrimination. Broad generalisations and rhetorical questions disguising the real intent which is to entrench white privilege by framing it as something else.
Can you imagine overcoming poverty and adversity, and often emotional trauma, making every elite squad they threw up at you, dealing with your dad walking out on your mum, still rolling up to every training session and putting in, still turning up every weekend and being the best, making it to every camp and interstate trip that they make you go to before they will consider you for the draft. Struggling and fighting while the other kid coasted in on talent and thinking - they'll reward me for this hard work. Then you have some former middle of the road footballer look at what school you went to and put you on the bottom of the pile?
Or imagine being overlooked because your mum, who raised you by herself and sacrificed to get you through all those hoops they throw up up to weed you kind out before they get to the final rounds, was seen as less of a person than the mother who shipping her kid off to boarding school to be raised by someone else.
Even less than that. Imagine being exceptionally good at football, going or the job interview and having someone ask if you mum is married to your dad.
If you think that's the way things should be done then there are probably other reasons than your interest in budgetary constraints of football departments.