consider that geopolitical situations such as colonialism and barbarian invasion are characterizable simply as order-aligned groups moving into chaos aligned lands and vice versa, respectively.
TBH, this feels like a very poor fit. Consider the conquistadors invading and destroying the Aztecs for example. It would be hard pressed to claim the conquistadors represented Order and the Aztec Empire represented Chaos. The problem is that order and chaos exist as points in a flux of events and can't be assigned as "traits" to large groups in any way of that nature.
Usually, colonialism involves breaking down of actually quite ordered previous existing social relations. That breakdown creates volatility (which can be profitably exploited). That doesn't imply the
groups fighting represent chaos and order. Both groups want to impose their own order, just as both groups consider themselves the "good guys". That's why any such critique of the good/evil axis can't just be replaced with the chaos/order axis.
Chaos is a state generated from conflict. It's the instability of being in between two ordered states, but ordered states which contradict each other. It's not a trait of the groups to start with.
Thus, even Robin Hood isn't a proponent of "chaos" - he fought to impose a
new order, not "no order". Consider the situation in the story. The king is overseas, this created a power vacuum, which Prince John exploits for person profit, while Robin Hood has been unfairly stripped of his noble titles. Thus, Prince John is exploiting an unstable situation for personal gain, and it is Robin Hood who seeks the restoration of the "proper social order" that existed before. Robin Hood steals from the rich to give to the poor not to overthrow order, but because the natural order was upset: the taxes are higher than they are supposed to be, which throws out the balance. When the king returns he'll restore the normal tax rates, Robin Hood will regain his family titles and he'll stop robbing people. Order restored. Robin Hood uses "any means necessary" to achieve his goals, right. But so does Prince John. The only real difference in power is that Prince John has the predominant amount of thugs on
his side so he gets to refer to himself as the government. If Robin Hood had more guys,
he'd be the government and set the rules, and Prince John would be the "rebel".
Prince John and Robin Hood can't be said to embody "law" and "chaos" in any meaningful sense. Not when merely adding enough troops to Robin Hood's group turns him into the effective government, without any need to change his policy approach. "robbing from the rich to give to the poor" would just be called taxes if you were the biggest armed force around.