Social commentary can be positive or negative, but it's generally used about current or past society. I don't think we've had spaceships purportedly saving humanity yet, so that's not what I would use. I think dystopian is more fitting. Dystopian literature explores the darkest facets of the human mind and human nature. According to the Oxford English Dictionary, a dystopia is "An imaginary place or condition in which everything is as bad as possible."

Whichever, it's definitely not satire, which is defined as "the use of humor, irony, exaggeration, or ridicule to expose and criticize people's stupidity or vices, particularly in the context of contemporary politics and other topical issues."