Via “tolerance,” of course.
If the UN (damn them) and the EU (damn them) have their way, then for many in Europe (maybe elsewhere) even mere criticism of the third-world invasion of the West will become a crime.
This is already happening in some of our countries – just ask Marine Le Pen, criminally charged for simply pointing out that terrorists commit terror.
(This is okay, not criminal. See, they’re “migrants” with special rights…)