Is calling the Prime Minister a "white supremacist terrorist" hate speech?

Black Lives Matter - Toronto spokesperson Yusra Khogali's description of Justin Trudeau as a "white supremacist terrorist" at a recent rally against Islamophobia has sparked significant backlash. Right-wing media are using it to attack BLMTO while liberal commentators have called on Khogali to resign as spokesperson. A number of individuals have even labeled Khogali's comments hate speech.