I watched a video from Spanian, the Sydney chap who spent a time in jail and now travels and eats out recording his travels.
in Paris he had a guide who had lived in Sydney who was from France. She took him through the city. There were many parts where the Parisians are scared to go, at least alone and female due to the large number of male immigrants living in tent cities under the bridges and on the foot paths. Spanian is a scary enough looking dude and many of them wanted to front up to him just for being there.
that type of migration is not beneficial to society.
when I was younger I remember everyone talking about the Greeks and Italians that came to Australia. They worked hard, opened shops, built houses and became the new Australians I know there are other groups that have done similar. Without this type of input we would be pretty boring. All the new foods and culture brought here has been beneficial to all.
gangs of youths wandering the streets with machetes and committing crime are not welcome. Some of these groups are children of people who escaped pretty bad situations in their home countries, but the youth seem to not appreciate the fortune of living in a good country, perhaps dreaming of being gangsters from too many poor influences.
maybe sending these ones back to where they (or their parents) are from for punishment might be the answer, then they may appreciate what they had.