Um, yeah, Canada has a Constitution and the Charter is a part of it:

The Constitution Act, 1982 gave Canada complete independence from Britain. Months of negotiations between the federal and provincial governments were held to determine how to “patriate” the country’s last British-held powers from Britain. The resulting Constitution Act, 1982 made several changes to Canada’s constitutional structure. The most important were the creation of an amending formula (the criteria that would have to be met to make future changes) and the addition of the Canadian Charter of Rights and Freedoms.

https://www.thecanadianencyclopedia.ca/en/article/constitution

So, yeah, I am Canadian and laws in Canada can be unconstitutional. If you are curious about it our constitution, try finding basic information about it before condescending to teach someone else about it.