

Ontario’s economy is heavily reliant on their auto industry that’s pretty tightly coupled to the US.
Looking over statistics in Wikipedia, it’s about 10% of the provincial economy, and not all automobile manufacturing in Canada is twinned to US companies (Honda and Toyota both operate plants as well, and probably have a better chance of competing with the Chinese companies). It’s nearly all concentrated in a handful of cities in Southern Ontario. Their local economies would be in trouble if the US automakers pulled out, but I think the province as a whole would weather it, although some of Ford’s more ambitious and useless projects would have to be put on hold due to the drop in tax revenue. Some of the factories and resource streams could probably be offered to non-US automakers or moved to manufacturing armoured vehicles, which (unfortunately) it looks like we may need more of anyway.
So, Ford is kind of speaking up for the short-term interests of a small, vocal subset of his constituents. The rest of us, not so much.



The document which governs this in Canada is the Canadian Charter of Rights and Freedoms, part of the Constitution Act. The relevant portion is right at the beginning: “The Canadian Charter of Rights and Freedoms guarantees the rights and freedoms set out in it subject only to such reasonable limits prescribed by law as can be demonstrably justified in a free and democratic society.” In other words, rights are not absolute, which allows things like laws against hate speech to be passed. Among the rights guaranteed by the Charter is “freedom of thought, belief, opinion and expression, including freedom of the press and other media of communication”. Freedom of speech is a subset of that.
( Full text of the Charter )
(In fact, even in the US, the right to freedom of speech is not quite absolute, as there are laws against libel and slander.)