Yeah I think the "both sides" argument here is stupid and depends on ignoring context.
People who threw paint on the JAM statue did so because they believed (correctly) that he was a racist responsible for the displacement and deaths of thousands of Indigenous children. The people who pissed on the war memorial did so because they are stupid drunken idiots. These are not the same thing.
You don't know the motivations of the war memorial stompers. Their friends were carrying Quebec flags. They could have been Quebec nationalists who hate Candada, but we don't know 100%.
The motivations of the John A vandals and the war memorial stompers are irrelevant. Vandalism is illegal, your supposed virtue or blood alcohol level doesn't absolve you of crimes. If you want the statue torn down fine, then grab some signatures and petition your government or everyone get in your car and park in front of city hall with signs and flags and honk your horn. Small groups of protestors don't get to hijack democracy and decide for everyone else how their cities are run.
Believe it or not criminals and fools exist within the ranks of every ideology, and they should all be condemned. Stop covering for criminals just because they're on your "side", unless you don't think democracy and rule of law is your "side".