A little basic psychology here.

When people such as 89-year-old white supremacist James Von Brunn, who attacked the U.S. Holocaust Museum, see the impunity with which Jews are being targeted around the globe by Muslims, it’s only a matter of time before they take an example.

Especially when they see that each “isolated” incident is met with a shrug by the world, which declines to read anything ominous into it; when they see the way authorities struggle and stretch to classify every such incident as non-terrorism; and when they see that the killer’s kind isn’t demonized — but rather defended and even allowed to dictate the terms of the West’s relationship with it — it’s practically an open invitation.

My somewhat tongue-in-cheek article “Razablanca” goes to the point of this dynamic.

After spending his whole life trying to be content to just badmouth Jews and running a website to galvanize people against them — while watching another culture actively killing them as world bodies and leaders reach for a common, middle ground with that culture — Von Brunn finally picked up a weapon.