China is ruled by a communist (far LEFT ideology) party doing socialist (LEFT) politics whereas fascism is a far RIGHT wing ideology, so they’re basically opposite ideologies.

Nazism (Germany) fascism (Italy) were far right wing ideologies, they basically killed communists (left ideology) for fun

There’re right authoritarian regimes and left authoritarian regimes. There also are fake/hidden “democracies” where their only two political parties are both of them controlled by the SAME entity in the background