"a symbolic motion of no legal effect"

Its only a motion and not a law. 

"The government is not bound to adopt a specific policy or course of action as a result of the adoption of such a resolution since the House is only stating an opinion or making a declaration of purpose." - From Parliament of Canada website.

When such Bill is proposed, which is legally bounding, then we can raise our flags but for now its only a political move. It allows the government to discuss issues and how to tackle them.

Look up Bill vs. Motion and you can see the difference.