"Jazz" may have been engineered like everything else.
Certainly the popularization of Heroin by means of getting jazz musicians hooked, was an -op
?
Obviously jazz style originates in Africa.
C[]A loves to co-opt and then accuse others of that.
Projection.
They want to co-opt it, take credit for a great American Art form, while destroying the lives of the Black American community, individuals from which, created it and gave it creative life.