There have been plenty of instances but you choose to ignore them. Mine came from the US Communist Party themselves: Defeat capitalism, share the wealth, fight oppression in races that really doesn't exist, protect those LGBQWYURT people, start a workers movement to control industry by bringing back unions, free healthcare for everybody, do something about income equality, control CEO pay, all Democrat and Communist talking points.
Such a common trait with you leftists. When you ask for evidence about something and we present irrefutable proof, all we get from you people is.