Democracy is a lie. It cannot work under conservatism. It does not work within a capitalist economy. It does not work in a vertical hierarchy. People do not function as people in a vertical hierarchy. Of course Brexit failed, just like the British Empire, and just like every single political entity ever has and will fail. Even if they seem to succeed for a while, they will always fail, and they will always fail humanity.
Our socioeconomic structures are not so different from any other animal's. Though the answer is right there in front of us, our emotionally manipulated, fearful existences have trapped us in these ridiculous concepts and arguments.
If we want people to be human and not scared and trapped animals, we have to take away the thing that keeps us animalistic, which is the need to lean on something "greater" than ourselves.
All we currently seem to be are clusters of endless daddy issues; religion, nationalism, success, wealth, value: hierarchies of daddy issues.