"Antifa only exists as a reaction to the white supremacy movement".

Really?

So why is it that in Calgary, at City Hall, on a July weekend, we had Antifa muscularly shouting down and silencing...

... a group of protestors who had gathered to call out Justin Trudeau for his party's support in Ottawa of the controversial "Islamophobia" member's motion?

You realize, right, that polls at the time showed that the majority of Canadians opposed Ottawa's "Islamophobia" motion, just like the protestors being shouted down by Antifa?

So what are you saying, then? That most Canadians are white supremacists? That you have to be a white supremacist to oppose the "Islamophobia" motion?

Sorry, but your premise falls apart on analysis...