Take a look at the upcoming demographic shift lately? The truth is we could close the borders now and we'd still be a minority majority country in 3 or 4 decades. Those kids could be redpilled to the extreme from these experiences and vote for the Christian party of Canada and it won't matter, the infection has already taken hold.
The only question is do we deal with the extreme discomfort of having a huge incompatible, entitled, racist voting block in 2030? Or in 2050? Cause based off how they breed, short of sterilizing them they're going to outnumber "old stock" Canadians by the end of the century, and wield significant political power by 2040.