IRA, Khalistani, PLO/PFLP/Hamas should all be treated the same way. Them and their fundraisers, quartermasters and activists of the diasporae.
Most people come to the west for a peaceful life.
Some come to find a quiet place to act as a Maintenance Area, hiding in plain sight.
Some come to disrupt the place.
Disruptors are easily dealt with criminally.
It is the bunch in the middle that needs sorting out. And no pandering by politicians should be tolerated.
Banner for every customs hall in Canada.
"Welcome to Canada. Leave your troubles at home!"