Wikipedia: Politics[a] is the activity of settling affairs in an organized society.
Merriam-Webster: the art or science of government
Collins: Politics are the actions or activities concerned with achieving and using power in a country or society
We live in a society where power is concentrated in the hands of the few. In other words, an authoritarian society. This society wants us to believe that the power to govern society can only be wielded by an economic and/or social elite. If we're going to move on to a libertarian society, where everyone has the power to change their circumstances and help govern their community, then we need to accept that politics is something we do every day when we work together to make decisions.
I believe that the unfairness of our society is maintained by a mind prison. This narrow definition of politics trains us to think of ourselves as powerless. That's one brick making up the walls of our mind prison. Let's smash it.