Canada is slightly different though because of its sheer size, there is a concern that proportional representation could drown out the interests of some groups.
That's what's literally happening with undemocratic first past-the-post drowning out 60% of the views in the country, throwing away the votes that didn't go for 2 most popular candidates.
With proportional representation though, there would be no need for this though, because these people would make up such a small fraction of the total vote.
False. It's family of voting systems and it's not a single a single voting system. We should not be generalizing. Under the proportional systems of the single transferable vote and mixed-member proportional politicians still need to to appeal to their local ridings.