Wait until they get a few million of them up there, all congregating in the same vicinity, and draining the local system there dry.
Once they see the nice area go from decent to barrio in short order, they may have half a clue what we deal with.
Currently they haven’t a clue whatsoever.....a few dozen a day crossing their border is nothing....
The problem isn’t illegals nor refugees....the problem is Politicians who have no concerns for it’s citizens and refuse to follow and enforce immigration laws.