No, because humanity has always had the same issues, and things are easily arguably better today than at any other time.
Things like starvation around the world have been driven down 30% in a 10-year period. The difference between my parents generation and mine are staggering, and then from mine to the next even more so.
You have to look past the talking heads, past the headlines - those are designed to sound awful to gather attention and to frankly, piss people off.
To quote Men In Black, "there's always an Arquillian Battle Cruiser, or a Corillian Death Ray, or an intergalactic plague".
I'm not seeing Deadpool as a great contrast of irony to sincerity. It's funny because he's cynically ironic, but all about getting to the truth and reality of the human condition in the current circumstance. And as a character, he's incredibly sincere, despite seeming to be indifferent.