We can disagree, which is what democracy is all about. This is why we are in the House of Commons. This is why we are here and, unfortunately, why they are there, but time is moving, so watch out in the next two years.
However, on the question, yes, the crisis created by the Prime Minister's tweet was also a threat to national unity. People in Quebec, as in Manitoba, as in each and every province, would love to welcome people coming to our shores, but they also want to welcome people who will follow the rules, and those asylum refugees, the 40,000 and more who passed through Roxham Road, were the first victims of the Prime Minister's tweet.