Chicken and egg

Being bilingual would be an absolute for the Conservative party if more Francophones were members, and could have voting power... however for them to feel at home, etc...

The issue is that the Anglophone majority does not have an issue with having a PM for whom English is not their first language. Francophones,  for whatever reason prefer a French speaker first..and since through much of Canadian history, they have voted as a block, they have been able to enforce their will on the entire country...