That all looks like Fantasy to me (and there's a lot there I like, too
)—not that I worry overly about the distinction between sci-fi and fantasy—but surely you're not saying you've had to stop reading SFF because you can't find anything that satisfies your needs? That small list can't be causing you
that much grief compared to what you
can enjoy, can it?
I just think we need to be careful about what we're actually saying. Are we saying; "I wish there was more upbeat and positive scifi"? Or are we saying; "I wish gritty, seedy, morally-ambiguous scifi wasn't as popular as it seems to be right now"? I'm OK with the first (although I still believe there's
more than enough variety in the genre to satisfy everyone's needs), but the second seems a little petty to me. I mean, the only time you should need to worry about stuff you
don't like is if you've run out of stuff that you
do like... right? Plus it's never a good idea to ponder too heavily on why something you don't particularly care for seems to be so popular. I try my very best not to give a damn what other people like to read and focus on what
I like to read.
I'm not looking to read science-fiction that inspires real scientists to invent the marvelous stuff they're reading about (I'm not sure today's scientists are even science-fiction fans, to tell the truth), but I'm sure if enough people
do want to read books like that... someone's going to write them. They might never make the top of the best-seller list, but who cares? Read what you like and don't read what you don't like—and I'm betting you never run out of reading material you enjoy.
Note: the yous in my tl;dr post are not directed toward anyone in particular (except for the first few).