Capitalism. For all the awfulness goodness gracious, quality of life has skyrocketed as we've figured it out. Parents almost never bury their children anymore, disabled folks who aren't royalty have better lives than almost ever before, if you break a bone you can get it taken care of rather than have it heal poorly and cause pain for the rest of your life, almost no one gets literally crucified and most have access to clean drinking water _in their house!!!_
Yeah, we maybe don't have it as good as our parents generation but goddamn we have it so much better than their parents and grandparents etc.
(I'd argue climate change is more a political problem than capitalism. A sane society would've put a carbon tax in place decades ago and let the free market sort it out. But we get into stupid political fights and the youth, who are most affected, don't vote in primaries when it really matters.)