Half of my family was not considered white by racist nativists when they got here. Now, we are considered children of privilege by racist leftists. The Caucasoid peoples are of varying shades. Liberals hoping for another Timothy McVeigh are the worst kind of racists. The real problem with these terrorists is that they were radical, jihadi, Muslims not which strain of Caucasoid they sprang from.
It is islamic doctrine to make use of such people ~ one of the reasons given is that they imagine the mentally ill to simply be getting punished for sins in their prior lives, so why not!
We now know of the genetic basis for schizophrenia. It can probably be cured, or treated. Leftwingtardism and islam probably can't.