I wouldn't say there's any meaning behind it. It's just a really on the nose point about Aku being an evil dick.

Much like what the dogs said in the first episodes. Aku liked stretching his influence to other planets and allowed aliens to move to Earth, many of which being degenerates. And as we've seen throughout the series, Aku only ever terrorizes the peaceful aliens who've long colonized the planet.

> It’s just a really on the nose point
>on the nose point
>the nose
Oy gevault are you trying to say something?