This is only true in some cases. Mainly when it comes to gangs vs gangs. When it comes to outdoor rape and robbery, almost all of those are committed by arabs/blacks. And the victims are almost always white.
In Norway, Oslo, 100% of all convicted rapists have been non-european for the last 5 years. The victims have always been white. In England, Pakistanis ... well, just google it. In Sweden, France, Netherlands, Germany, Denmark the situation is very similar.
You've gone from talking about all crime in a continent of over 800 million people, to focusing in on things like outdoor rape and one city.
The last number I could quickly find for reported rapes in the UK was 13,712 for 2006. I'd like to see a source saying that most of those were done by non-whites against whites, because that news would completely flip criminology research on its head.
That number would be about 43 reported rapes for every 100,000 females in the UK. The rate in Utah is 64 for every 100,000 females.
Homicides in England and Wales :
Just under three-quarters of victims (73%) were White, 11% were Black, 8% were Asian and 3% Other.
Of those cases with a current suspect, 88% of White victims were killed by a person from the same
ethnic group. The corresponding proportions were lower for Black victims (75%) and Asian victims (65%).
In cases with a current suspect, 60% of all victims had been acquainted with the suspect prior to the crime.
White victims were more likely than other ethnicities to have known their suspects – 63% of White victims
in cases with a current suspect knew their suspects, compared to 51% of Black victims and 56% of Asian victims.
Family members were the principal suspect for 32% of White victims, 29% of Asian
victims, 18% of Black victims, and 25% of Other ethnicity victims in cases with a current suspect. Strangers
as suspects accounted for 37% for White victims, but 49%, 44% and 43% for Black, Asian and Other
ethnicity victims respectively in cases with a current suspect.
www.justice.gov.uk/stats-race-criminal-justice-system-07-08-full.pdf