Anarchists assume that man is basically good.
No; anarchists (generally*) make no such assumption.
Anarchism is better than statism regardless of how good or bad man is.
- If man is good, then the State is unnecessary.
- If man is bad, then States run by men only amplify the bad.
- Most anarchists consider some men to be generally okay, but with some bad, and consider how to deal with this realistic situation. Anarchists contend that monopoly courts (and police) are not the answer.
* There do exist utopian anarchists, who believe that the very nature of man will change when he is no longer perverted by authority, but that is a small minority.