In avatar they win the war and keep their resources and hardly any harm is done but, in the real world they had no freedom and worked for the Europeans. They lost a lot of resources and paid for their own products."Also, the willingness to exploit and abuse the people and resources of so-called "primitive" nations was very helpful in the whole enterprise" He meant that abusing people and taking resources were really helpful but in avatar they did not get what they wanted.
"Imperialism may be defined as the projection of state power (preeminently administrative, military and economic) from one sovereign center into regions beyond established frontiers or borders."Just like in avatar the humans tried to have total control of power to take the resource that they wanted.
In the late 19th century, between roughly 1875 and 1900, a handful of European nations conquered most of Africa. They conquered it to get resources for their markets and money and slaves. just like in avatar they took over just to have them working for the Europeans."Three centuries of the slave trade had taught Europeans that Africans were inferior, and that helped to justify imperialism in the minds of many" this author states that they went to go get slaves but in avatar there was no slaves.
This website describes the similarities between avatar and the European imperialism.The author states "It is about dominate aggressive cultures subjecting a native population in a quest for resources and riches."what he means by that is remember when the earthlings wanted to get that resource of metal and all the tribes joined forces to protect whats theirs.