Notre-Dame, and many churches in France, are owned by the state and merely used by the church. That gave the French government, and President Macron, a big voice in the restoration project.
Quebec has played host to a number of cults and alternative religions over the years, from the Ant Hill Kids, the cruelly abused followers of Roch Thériault to the U.F.O. believers of the Raelian Church.
Enforcement tactics do not in the end deter asylum seekers, who are typically fleeing life-threatening circumstances, but stricter enforcement does push border crossers to more dangerous paths.