It isn't. I'll give you an example.
The crime statistics for the EU used to be good. It wasn't a paradise where you didn't have to use locks and alarms, but at least you didn't have to worry about being killed in the street. Some countries like Sweden had very low violent crime rates and the police in the UK didn't have to carry firearms.
Then the whole migrant crisis happened. The leftists lead by Merkel and Macron had decided that the EU should open its borders to refugees, but along with those refugees came migrants from different African countries like Eritrea and Somalia. The majority of these migrants were not fit to live in a society of any kind and the majority happened to be Muslim.

Years later the statistics are damning. Police in the UK is forced to carry weapons, and they quickly went from unarmed to armed in assault rifles. Police in Germany patrols the streets with dogs and never solo, since there were many attacks on officers in the past years. I've been in Berlin almost every year for the past 6 years and nowadays a sight of 3 heavily armed officers with a dog is normal, especially downtown. 6 years ago you'd have to go to an airport to see a similar patrol unit.


Sweden has the second highest non-indigenous Muslim immigration population rate in Europe and the second highest sexual assault rate in Europe. It would be foolish to pretend that this is a coincidence.

Take Ireland and the United Kingdom. The UK tops even Sweden in Europe’s sexual assault and rape statistics. At 130.96 per 100,000 for sexual assaults and 50.68 per 100,000 for rapes, the United Kingdom is the most dangerous place for women in Europe. One analysis claims that 1 in 5 women will be sexually assaulted and that 3.1% of women were assaulted in just the last year.

Belgium has the third highest Muslim population rate and the third highest sexual violence rate.

https://canadafreepress.com/article/muslim-migration-and-rape-statistics-in-europe

Now, tell me that there's no connection. That it's all stereotypes and prejudice.