Reality TV - usually anything but real. And what else could you expect in this movie, which is a social commentary, but also a commentary on many other things. It takes cliches and turns them upside down - and spins them all around. Or something along those lines.
Migrants/foreigners are an easy target for politicians - especially those right wing leaning ones. But they also can be used as scapegoats by (right wing) media ... sensational stories are always selling best. And people who have a background outside of Austria (in this case, replace by the country you live in, Germany, USA, UK and so forth) and you'll be able to find a lot of stories of how bad people are - criminals and what not. Playing and stoking fear in people makes them vulnerable. And easy to manipulate. See also Trump and his Republicans with the alleged caravans - always timely (not) arriving when elections are due! To stir up fear - it is so easy and cheap and yet it seems to work in large parts .. unfortunately.
Anyway, this movie will not solve any of those problems. But it will hopefully make you think about certain prejudices you have (if you have them) ...