Sorry to jump in this discussion but I usually get intrigued by these types of arguments.

Because I dont believe one court is “better off” the other. You absolutely nailed down why Blue’s court is the way that it is and why Yellow’s is the way that it is… but in the grand scheme of things, Yellow’s gems are far less likely to look at themselves as individuals outside of a system (we saw how hard it was for Peridot to break out of this mentality). So yes, they definitely make for better working gems in the HW system, but we know how screwed that system is. So the fact that they fit it so perfectly will make it harder for them to break out. Blue’s pettiness, in a way, gave her gems a sense of self and and an easier way out.

Another thing is Blue’s selfishness. Yes, this gem is selfish. Boy, is she selfish. But I think that a lot of people confuse it with some sort of lack of empathy for some reason. Prior to CYM i mightve heavily supported this claim too- except, its was proven to be false. I think its wrong to say Blue doesnt care about her gems- she just feels helpless. She recognizes their misery, and compares it to her own (yes, this almighty Diamond recognizes feelings on other beings “below” her, and relates that to her own feelings- like she did with Greg all the way back when she was introduced). But that’s where the helplessness comes from- she compares their misery to herself, and realizes that just like her misery is inevitable and unchangeable, so is theirs. She wasnt made to be happy, so are they. She feels she has nothing to do to change it, because in the current system gems like them cannot find peace.

All of this doesnt redeem Blue in the slightest. She knew her gems were in pain and did nothing to change it. She didnt even try, at least not that we know of. I think another thing about Blue (that points to her lack of self awareness) is that she doesnt recognize that she has an active role in making other people miserable. She probably blamed it all on White or the system, and told herself shes only doing what she’s doing because she has to, not because she wants to, and that makes her faultless. That’s probably why she didnt even realized she made Pink so miserable. But we know that isnt true. And just because she didnt want to be a part of this system she still had a huge role in enforcing it. She didn’t choose to be in it, but every day she didn’t reject it she “chose” to participate in it. of course, there are many other factors that made her stay (hint: it wasn’t her free will) but that’s a whole other discussion.

Blue and Yellow are so fascinating because here we have a case of two people who were made into enforces in a system without their choice, who choose very different ways of handling it: one internalized it entirely, to a point she had to actively shove down her own feelings and wants to accept it. The other refused to turn away from her feelings and wants, but ended up stuck in misery she believed she has no way out of. And we can see aspects of these approaches ringing in their gems as well, though to different degrees.