It may be fair also to say that musical intolerance comes in many flavours. Jazz elitism may be rife in certain circles, while in others, strident purism of other types dominates equally gallingly.
For example, the rock "feel/vibe purists", for whom the peak of all possible things is David Gilmour holding a sustained note from the blues scale - anything more strenuous, or of different feel, is considered extravagant, self indulgent, or missing-the-point, man.
Each faction holds some kernels of truth, but when personal bias turns those kernels into hard prejudice, the only lesson left to be learned is that we're all doing our own slightly different versions of more-or-less the same thing - "art", as per life.
You see the same odd and ironic relationship between some classical musicians and more popular musicians. I’ve known people who are real into techno who thought classical music lacked any creativity because it was all written down, and then I know exquisite classical musicians who think rock and electronic music is a bunch of garbage.
For example, the rock "feel/vibe purists", for whom the peak of all possible things is David Gilmour holding a sustained note from the blues scale - anything more strenuous, or of different feel, is considered extravagant, self indulgent, or missing-the-point, man.
Each faction holds some kernels of truth, but when personal bias turns those kernels into hard prejudice, the only lesson left to be learned is that we're all doing our own slightly different versions of more-or-less the same thing - "art", as per life.