It's the Colombians who are picking up the bulk of the problem, and Colombia just isn't that big a country. Here's what the problem is:
Strange that we haven't heard a peep from the EU about this genuine emigration crisis. They're usually pretty shrill about this sort of thing, aren't they?
Lots of people moving from Venezuela to Columbia, because
so many of them are Columbians. Venezuela has experienced massive illegal immigration from Columbia. The migrants came to Venezuela (which used to be more Caucasian in demographics) from Columbia for economic reasons, and then helped Chavez come to power.