Bravo! We'll said - I think we've all been guilty of the subtle sexist/racist abuse at some point. Perhaps a rethink of the most obvious chant we all use "she fell over" or even the "same ol' Aussies, always cheating"?
It's pretty hard to stop yourself in the heat of the moment - generally your upset because the nix are losing or something has gone against our team.
The YF could be the leading edge in how it should be as far as active/incuslive support.