Some people wanting a “better life” should concentrate on why they do not have that “better life” where they are rather than immigrating to where they think life is better.
Just because “some” people want to do things, does not mean that you should let them.
Some might think those leaving low value economies and persecuted economies are totally selfish, self interested and social outcast individuals that are too selfish, self interested and potential outcasts in the society they are migrating into.
