While I respect that the author is anchoring this opinion around the extreme right, the ideas of banning speech from a certain portion of the political spectrum has pitfalls.  

The line between free speech and hate speech is important, but is open to interpretation and manipulation, as is the line between a moderate conservative and a more extreme 'conviction addiction' view.  Trudeau pushes that line by effectively dismissing anyone who does not agree with his handling of the 'irregular migrants' as extreme right.  

Applying the author's ideas in this scenario could muzzle a more moderate and malleable (less conviction) point of view.  There is no reference to the far left, as in the author's view these positions are no doubt superior.  Are eco-terrorists who threaten public safety tampering with energy infrastructure OK?

Well written article, but from a champagne socialist in an urban ivory tower, I have to dismiss it.  

Let common sense prevail rather than socialist intervention