Discuss Canada's trading partners and the potential risks associated with trading with China.
There are a lot of other potential trading partners in the world besides China. None of them pose the kind of risks to Canada and Canadians that China does.
Leaving aside the moral problem if getting into bed with a murderous totalitarian regime, Canada should only be trading with partners that have similar environmental and labour laws. In other words we should not be trading with places that pollute their countries and pay their people far less than the equivalent Canadian pay. To do otherwise is a fool's game in which we are the fools.