These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
More subtly, to colonialism, displaying the internal struggles and conflicts in resisting the conqueror and maintaining the invaded culture while considering the invaders’ culture’s benefits, and finally considering the issue of forced assimilation. In what is probably an accidental example, one of the bulldozers has ‘KKL’ written on it.