There it is, unfortunately, on the table in plain view.
Along with, indeed, the now obvious fact that modern day Islam is not "a religion of peace", even if it ever was.
Will we remain in denial beyond the tipping point? If not, how will we recognize and deal with that tipping point?
History gives a clear vision of what will happen. You need look into the recent past and note the fate of Russia after Stolypin was assasinated and the subsequent events of the 20th century.