Do you think human society in its present form would survive if each and everyone was a free thinker? Free thinkers become leaders in most cases. And leaders need followers. That's how religions grew and spread because most humans like to leave the tough business of free thinking to others.
I understand and agree with your sentiment, that either you are a free thinker or a sheep. And also that free thinkers have a tougher life ahead of them.
But I think the flaw in your statment can be that
I don't know, it all seems a bit presumptuous, I don't really think of "free thinkers" as a substitution for "enlightened" for example. It's not about having the one true outlook, it's about knowing the truth, about self, society, the physical universe, the nature of things as best we can tell. It takes time, and the less time invested the more preposterous the assumptions. I've learned so much it's making me stupid because the more you learn the more you find there is to learn, it's quite humbling.
No, as we are now a lot are poorly educated or inform about the world and how society truly runs. We been listening and processing information provide by people who are manipulating us to better themselves more. So unless it’s people who actually do their own research and truly think independently. I believe it would be chaotic and destructive society.