there are some minority groups - like indo-canadians and muslims today, and jews in the past - that are actually starkly noticeably over-represented.

there were 19 indo-canadians elected in 2015, when a proportional amount would have been more like 10. that's a 2.7% difference, which is pushing towards significance.

i'm not complaining about that. as far as i know, they won their seats fairly.

but, it's important to point to actual, real data when making political decisions in an actual party, as bad assumptions could lead to poor outcomes.