I think life itself.
Without going into depth, life creates murder, pain, cheating, stealing, lying, etc. It also creates powerful diseases and disorders.
So I guess it's a constant fight whether I love the idea of 'Life' or hate it.
It does also create the exact opposite. Why give more coverage to only one side of the issue?
Personnaly, what I hate the most is wasted potential. Society would be truly amazing, if less time/energy was wasted on dumb distractions.
Ah yes, the idea of 'Life' is also fantastic. The evolution of building, dreaming, medicine, technology, and almost everything else. But some of the good things in life also creates bad things, not on purpose of course.
But I agree with you on Life itself not being wasted, but the ideas and dreams of life. Like how some people imagine it to be getting money, doing drugs, and having mansions. Instead of wanting to actually live and achieve.
So then Society, or potential is wasted on these messily things. And of course, this isn't the only reason, or idea on how potential is wasted.