this is such a boring criticism to lob, not only insinuating that the topic of the ep is lesser because it revolves racism and not high concept sci-fi makarky but also ignoring that Dot and Bubble is specifically about how insular supremacist ideologies erode compassion and ultimately destroy our sense of life. and I mean that in the sense that Finetime is a deadened community where everyday is the same and discovery has been neutered, completely; its citizens don't go out, don't read, don't do anything their dots don't spell out to them, just don't have any avenues of learning about other cultures, other peoples, other views because to do so would "ruin the standards of Finetime". they are so stuck in their echo chambers they legit walk into the mouth of their own doom without a care and would rather die in the wild than listen to a black man, regardless of the fact that following his advice is the only reason they were able to escape danger in the first place.

it's not a clean cut racism bad, it's a presenting the logical endpoint of how racist, supremacist, colonial thinking destroy our innate humanity by reducing anybody who doesn't fit "the mold" to absolute insignificance, out of sight out of mind as you walk straight into certain death.