1. This is not evident. I seem to recall strident positions against conservative views about several topics, from climate change to firearms regulation, to the point of not respecting such views, let alone protecting them. Perhaps you are making a finer small c conservative distinction now.
2. I think that is the issue...the American framework invites conflict by design, something that Canada abhors..."peace, order, yada, yada, yada". Many leftists no longer tolerate opposing views that clash with their "values", including hate speech, "microaggressions", abortion on demand, gender identity, etc. to the point of seeking to silence others as peace.
The American narrative has a different set of rules that are not so easily reconciled in a Canadian context, despite drinking from the fire hose that is American news and social media platforms. It is too volatile and dangerous for the Canadian palate, but many like to watch.