I'm not sure why they consider this a worthwhile thing. Clearly they are capable of identifying problems, but aren't capable of doing anything about them. As such, they should get out the way of the people who are actually solving them. A hundred years ago such people were complaining that capitalism and global trade were evil and destructive, and they and their fellow-travelers attempted several more-or-less violent approaches to overthrowing them, which held back human development by decades and destroyed tens of millions of lives.
Despite those abject failures, the same anti-empirical wingnuts are back today, when capitalism, the rule of law and global trade have created an era of unprecedented peace and prosperity--exactly as their irrational predecessors predicted would never and could never happen. But they don't let anything so Enlightened as mere empirical reality prevent them from continuing their litany of complaint and opposition to progress.