Actually I haven't read many mangas at all yet, I recently got a tablet for reading them on the train; I can't stand reading any on a website, but now I can fit in reading some on public transport to make better use of the time. Yeah, so anything you suggest is probably going to be helpful.
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>> dead serious anime
of recent anime the only ones that trigger that same general feeling of some you listed were:
Psycho-Pass
Shinsekai Yori
other ones all tend to temper the serious themes with moe or other BS. e.g. Black Bullet is sort of similar to Darker Than Black, except the hero has a super-powered loli harem to help him / fight over him.
Older ones, trippy or philosophical:
Serial Experiments Lain
Dennou Coil
Paranoia Agent
Kino's Journey
Some movies with a serious vibe:
Jin-Roh: The Wolf Brigade movie: get on this ASAP if you haven't seen it
Sword of the Stranger movie: straight up manly blood and guts slaughter
Eve no Jikan movie: about humans coexisting with androids
Tokyo Godfathers: drama / comedy, modern realistic setting
troll suggestions:
Dominion Tank Police. It's a parody of police mecha anime. gung-ho police who solve every possible problem with their tanks. The original anime was pretty fun, but there's a 2000's CGI sequel that was pretty terrible and didn't capture any of what made the old one fun.
Shounen_Kenya - seriously, this movie is a non-stop WTF rollercoaster. I was scared to watch this because of low ratings, but I'm glad I did. It was bad, but in the eye-popping "did I just see that?!? did they
seriously just ..." way.