I don't know where you live, but come down to SW Sydney and see the quality of some of the foreigners who live here.
Middle Eastern Crime gangs.
Ethnic Outlaw Motorcycle gangs.
Asian and Eastern European drug gangs.
Businesses which are fronts for Car Rebirthing and Drug Distribution.
Dodgy Workers Comp Claims by particular Ethnic Minorities.
Rorting of Medicare by Non Australian Residents.
Long Term Welfare Dependency.
Gun and Knife Crime.
Etc.
While some Aussies are experts in Crime, the huge influx of Dodgy Foreigners are wrecking our Cities with their total lack of Respect for Australia and it's Laws and Way of Life.
Try walking around the Bankstown area after dark if you're a White Aussie.
I wouldn't!
I'm all for decent, hard working Foreigners and Aussies, but the last 20 years or so have definitely seen a drop in the quality of some Migrants.