God Bless America:
"How about allowing free speech and canceling the alt-left rioting and anarchy?"
EXACTLY! What the Mayor is really saying is that the Portland Government cannot control their alt-left 'element' (or won't?) His statement conveys 'Implicit  Consent'. He did not say: "Rioting and Anarchy will NOT be tolerated!" Why, The Rioters are not the problem , but that which may 'cause' the rioting. This is similar to those people who say: "Just don't get Me angry!" - like spoiled Children.