modern borders, as a fence where people aren't allowed to cross is a colonial invention.
and honestly, arguing semantics and history is a fun tangent but not what I care about.
everyone should be free to travel and live/work/study wherever they please. and an immigrant and a local should have the same rights and opportunities.
that is separate to the point of "we should make their places better so they don't need to migrate" which I agree, but need to note the western chauvinism in that statements. it would be enough if the west stopped messing and exploiting those nations, forcing them into poverty.