Canada is a country of immigrants (to some fairly large degree, anyway), and we are well into 2nd and 3rd generations of immigrants without seeing this problem.
When we do have more extremist issues, it rarely is from this part of the population. A lot of times when peaceful protests get out of hand in Canada, it is because of infiltration from groups like the "Black Bloc," which despite the name, are primarily white and often white supremists. They tend to provoke rival groups like BLM, with a special intent on smearing them, which is seen often enough in the US as well.
We have had, and probably still have some specific incidents associated with known foreign terrorist organizations, but they specifically involve the "old guard" who were not born and raised here.
UK, France and Germany each had more than 1000 citizens fighting for ISIS in Syria and Iraq - most of them are second gen. Most of terrorist in French terrorist attacks on 2015 were citizens of EU and second gen immigrants. I would expect situation to get much worse in the next 20-30 years unless global Islam looses steam and purpose similar to Christianity loosing them earlier in 20th century.