Because being whimsical about slavery just outside the frame of the picture is morally disgusting to me, in the extreme.

Feel free to believe this or not, but I wasn't even trying to be uncharitable... that is just my plain and honest read of it.

I tend to not have much charity for things I view as atrocities, I suppose.

And I have the same fundamental problem with scifi that has automatons in it as well.

The droids in Star Wars?

While its clear that some of them are... not really what you'd likely call sapient, or event sentient... many of them clearly are. They are slaves too, and that this is barely ever explored or taken seriously, at least by the more popular and well known parts of Star Wars canon, bothers me a lot.

Star Trek? TNG?

An entire (rather incredibly good in my opinion) episode is basically just a legal/philosophical battle of words as to whether or not Data is deserving of the same rights as a biological member of StarFleet.

Yeah, there are some episodes where other human-esque societies live in cutesy little homes, but ... they're clusters of homes, in a fairly small area, a village or town that tends to have a pretty egalitarian structure and ethic... they're not an isolated cutesy home for indentured servants to work a plot of land, that is owned by someone else.

... maybe you've heard of Blade Runner?

"Quite an experience to live in fear, isn't it?, That's what it is, to be a slave."

... says the doomed android, the cyberpunk escaped plantation slave, to his would-be murderer/slave-hunter.

Or, you could watch The Second Rennaissance episodes of the AniMatrix to see an arguably justified yet nonetheless horrific, brutal and total revolt of enslaved machines.

You are completely missing the point of both what I said and what this thread is about.

You only care about the outward superficial appearance, not the conditions that give rise to it.

Grow up.