There’s only one problem:
Simply put, our immigration system does not welcome everyone. If that were the case, we wouldn’t have border guards and we wouldn’t have a border services agency. The whole idea behind the existence of an immigration department is to decide who can enter our country and who cannot.
The facts are that some people will be welcomed, and some people won’t be. No country can afford to just let everyone in.
That’s why Trudeau’s tweet was an example of virtue-signalling. He got to show how “open” and “kind” he was, without taking real actions.