The concept of "institutional completeness" that you use is interesting. It's also used by Frédéric Lacroix. According to that principle, the stronger a linguistic community's institutions are, the greater its language's force of attraction will be.
English schools in Quebec admit more students than there are anglophones, nearly three times as many at the postsecondary level, in the CEGEPs. As a result of the positive measures the federal government has taken, approximately $50 million more is available for English-language primary and secondary schools. For the CEGEPs and universities, that's a lot of money.
What you think about that? Should we question that principle?