Go to China and say bad things about him.
That does not mean he is a dictator but you are correct political protest is not allowed. Surprisingly, though, they will tolerate a pretty heavy dose of economic inspired protest. Some things the Central Committee realizes are more powerful: A group of Chinese upset over a money issue.
That is not allowed. But that does not mean the system of government in China is that of a dictator.
"A dictatorship is a government or a social situation where one person makes all the rules and decisions without input from anyone else. Dictatorship implies absolute power one person who takes control of a political situation."