Humanity is hundreds of thousands of years old, changing over time to reach it's current state. How many ups and downs have there been for us to arrive here? This just seems like extremist negativity to me. Is there nothing positive in the world to look at?
If there are such problems in the world, then resolve them. Don't just die.
We're people in these downturns enjoying life? Our downturn is self made and (was) avoidable. But instead our captains are drunk and refuse to steer the ship away from icebergs that we can clearly see.
You can of course still be content in life and ignore all this. I'd like to think that humanity can be better, what makes me sad is that we aren't, or our current system of society and government makes it impossible.
If there are such problems in the world, then resolve them. Don't just die.