There's no reason why a multi-racial society can't let their kids go out to play. Being multi-racial doesn't mean a country has to turn itself into a shit hole. Moreover, if it's because the races hate each other, then stop encouraging the hate.

>Being multi-racial doesn't mean a country has to turn itself into a shit hole.

It doesn't? Do you have any examples where this hasn't happened?

I live in a French neighborhood with multiple races (mostly white+arabic+black) and it's very safe, children play outside be themselves and no parent or neighbor ever care.

What does race have anything to do with this? Unless you believe diversity somehow leads to insane laws....

How is playing or beeing outside is a racial thing?

Granted that the average is as you say. But averages conceal the truth that the racial composition of those US districts that I have seen personally is generally not average, they tend to be overwhelmingly white or overwhelmingly black (mostly the Raleigh-Durham Triangle). In Norway we don't have many areas where that happens.