Here is an in-depth article about the kinds of people pushing this behaviour forward.
Twitter of the owner. At least they seem to not be backing down. From what I’ve seen there’s nothing in their history that is anti-Semitic, only pro-Palestine and anti-Israel. Yet the framing of the issue by news media is consistently calling them racist, anti-Semitic etc. Fuck Toronto Sun.
Of course Tom Mulcair is involved in this. During his leadership he kept an incredibly tight whip on any MP or potential candidate speaking out about Palestine.