We share some of the responsibility for their poverty when we overthrow their governments (or prevent the overthrow of dictators)
Typically, the democracies are overthrown for the 'crime' of trying to strike better deals with US corporations who are trying to (buy? steal?) their natural resources.. and labor... Iran in the 50s was a good example.. To replace the overwhelmingly popular Mossadeq(?) - (who was promising to nationalize the oil industry in Iran, I think)..the CIA installed the Shah.. (and his still-infamous SAVAK secret police) who killed perhaps hundreds of thousands of Iranians.. ushering in the mullahs on a 'red carpet' of sorts.. of blood..
Are we seeing a pattern here..
If we want to stop illegal immigration, we need to stop meddling in the Third World.. and that means we will need to accept that the US will not be able to tell other nations how to run themselves.. even if it means 'US' corporations will have to pay more for labor, raw materials.. etc..
Why not? ITS THE RIGHT THING TO DO..
'Live simply, so that others can simply live'
do not defecate where you sleep. If we come for them, eventually they come for us.
Oh wait, they already did.