Diversity can be achieved without quotas.  Your comment about 5 centres on a hockey team is, with respect ,  am ineffective response to the hockey analogy I made earlier. To draw a parallel with your observation, a university with 500 sociology professors  and zero engineering professors makes no sense either.  But that was not my point.  My point is that Canada could not field a winning hockey team if it had to ensure representation of all ethnic groups on the team. Talent must be the guiding principle both on our hockey team and university campuses. You may have a point that marks are not the best indicator of talent.  But selection  based on gender or race or ethnicity have zero connection with  talent, and that is  the Achilles's Heel of your post.

I agree that diversity has value.  And I agree that  talent  can be found within all groups.  That is exactly why we do not need quotas.