No change in musical style will survive unless it is accompanied by a change in clothing style. Rock is to dress up to.
Communism doesn't work because people like to own stuff.
You do have to change things as warfare changes.
Once brave politicians and others explain the war on drugs' true cost the American people will scream for a cease-fire. Bring the troops home people will urge. Treat drugs as a health problem not as a matter for the criminal justice system.