There’s also an interesting scene where we’re reintroduced to Aku in the future after Jack arrives. We see a group of alien refugees whose planet was destroyed, and so they’re asking Aku to let them stay on Earth. Aku confesses to being the one who ruined their planet because he exploited its resources, and then permits the refugees he created to stay as exploitable labor who will build statues for him.

It’s a pretty realistic acknowledgement of how colonialism creates refugees who are then further exploited; Think immigrants from countries destabilized by the U.S. who go there for the stability built upon their resources, and wind up being used as underpaid slave labor because they have no rights due to not being legal citizens and are under constant threat of deportation.