Does having "we" in there mean anything to you?

That by using first-person-plural that they’re volunteering to be part of the solution?

Don't over-interpret.

By "leave" I mean the literal "leaving", e.g. not staying in places that are unfit for human habitation.

Why do we need to have unsustainable permanent settlements in the Arctic? Why are there multi-million cities in the middle of the desert?

Interpreting the term "leaving" as anything else than "moving away from a place" say more about the thought process of the person interpreting it that way than about the one making the suggestion ;)