[Kirarakim]

That's your interpretation of the ending, but

Spoiler for SSY:

Satoru works in biology. There is nothing to say they are raising the cats with the sole purpose to kill children or that is the sole purpose of the cats.

In fact the very idea that Saki and Satoru are not fearful of their child and are talking about it growing up shows change. They also did not say if the child grows up, but when

That's not to say things will change overnight and maybe they have not found a solution to akki and gouma (although we are shown that Saki is researching it at the end) but they clearly show that Saki and Satoru are working towards change.

edit: just rewatched the final scene and the wording was "an object of fear turns to hope". I assume they are talking about the baby.

Anyways I am not really saying either SSY or Psychopass have a more hopeful look towards humanity as a whole (if anything the SSY society might be even more bleak and tragic) but the development of the main characters in SSY at least fills me with more hope & I enjoyed Saki and Satoru's development more than Akane and co.


Edit And another thing I also thought squealer's ending was much more satisfying than Makishima in terms of storytelling & character development

Spoiler for SSY:

obviously not more satisfying for Squealer.

Although the direction of Makishima's ending was superb it left me a little flat. I thought Makishima was a great character and deserved something more...