After reading and analyzing the Statistics Canada report, I've come to a different conclusion than the author.  First, visible minorities (or "brown people" as quoted in the article) will not be half the population by 2036, they will be 34.4 percent.    According to the 2010 US census, minority groups combined were 37 percent of the population in the US, meaning that Canada will be roughly as white in 2036 as the US was in 2010.   Donald Trump was still able to get elected with a non-Hispanic white population of around 61 percent.  The author tried to portray Canada's demographic situation as being written in stone and that we all should just grin and bear it.  This is not the case, the country's ethnic change is driven by immigration.  A change in immigration could alter those projections  dramatically.  
Also, a 7% Muslim population is significant, especially at the local level.  France, according to Pew, is said to be about 7% , and look at the issues they have.