I believe this to be true.
Culture 50-60 years ago hardly existed, Canadians were Canadians and Quebec, well, the beginning of hitting the federal government in the pocket book with Quebec becoming fanatically culturally obsessed and leading up to 'official multiculturalism' and 'official bilingualism'.
Yes, suddenly the emphasis was on culture and with the emphasis moving towards pandering to the cultural desires of ethnic immigrants, normalized Quebec's political demands based on culture.
There was no political party defending the cultural and national interest of 'White English speaking Canadian' and still isn't to-day.
White English speaking Canadians appears to be nothing more than a bunch of uncouth plain Jane Canadians worthy of no federal attention.
It's frustrating. I agree. We need strong voices to bring attention to the cause.