I think maybe the anthem was booed 'cause it was sung in English

It was Montreal after all.
It's changing out west as well. Richmond is now little Hong Kong. So much so that us caucasions are being ignored in some of the shopping areas. What used to be called Vancouver, B.C. (British Columbia) is now called Vancouver, Canada.
One of the military service organizations had to remove the word "Royal" from their name.
Quebec is allowed to entrench culture and language rights but English Canada has to take second stage lest we offend the multicultural rights of new immigrants.
Kids used to sing Christmas carols in school.
I think it's all a plot to weaken English Canada and allow Quebec to separate
Then again times change, after all our soldiers used to march into battle shoulder to shoulder wearing bright red uniforms with targets on them.