FAMGM:
Social structures foster sexism.
Social structures foster sexism.
Lack of social structure fosters warlordism.
Check out any place and time on the planet where a region had no effective government. Would you want to live there?
Humans are flawed. But many humans also try to be good. No matter what kind of social structure you have or don't have, a certain percentage of humans will be assholes. If someone promised you that by breaking society apart and implementing their idea of a new system will bring out perfect utopia where every single human being will cooperate with everyone in everything without any issues, then you've been led on and you might unknowingly be serving an upstart dictatorship which will make things worse, much much worse. Several infamous systems in the past century started this way, which such promises...
Our current society (it seems almost every commenter here is from a country belonging to the "Western civilization" ), despite having some flaws we could work on to make it better, is still the civilization which gives the best quality of life and the most personal freedom to common people, across the entire human history, and it has been built up gradually over many many centuries. Anyone who denies that, denies basic reality, and shows an utter lack of knowledge about history.
If you want to completely demolish it and build something completely new out of the ashes, chances are the result will be much worse than what we have now.
1 year