Communists are almost exclusively Revolutionary, rather than Reformist. Lenin and Rosa Luxembourg both make good cases for why this must be in State and Revolution and Reform or Revolution respectively, though Marx himself also makes this case and one need not be a Marxist-Leninist to agree with Revolution.
The largest reason is that the state reinforces the systems it upholds, so even if it can be flavored differently over time, the mechanisms to slide back to Capitalism remain. Thus, destroying the state and replacing with a new structure better safeguards the Socialist movement.
Communists are almost exclusively Revolutionary, rather than Reformist. Lenin and Rosa Luxembourg both make good cases for why this must be in State and Revolution and Reform or Revolution respectively, though Marx himself also makes this case and one need not be a Marxist-Leninist to agree with Revolution.
The largest reason is that the state reinforces the systems it upholds, so even if it can be flavored differently over time, the mechanisms to slide back to Capitalism remain. Thus, destroying the state and replacing with a new structure better safeguards the Socialist movement.
Even Anarchists seek Revolution over Reformism.