Why was the cultural revolution led by the red guard a failure?

On August 22, 1966, a central directive was issued to stop police intervention in Red Guard activities. Those in the police force who defied this notice were labeled "counter-revolutionaries." Mao's praise for rebellion was effectively an endorsement for the actions of the Red Guards, which grew increasingly violent.

most people such as me i dont have one but if   i did i would mostly likely quit my job if the economy was down cylcling that means less money if you go to a bigger job that is prospering you can earn more wage and still be able to feed yourself or why you work all people want more money then they have guarteed most people like me would switch jobs for a better one with higher wage