People need ideologies, and ideologies need people. Liberalism, capitalism, communism, environmentalism, feminism, religions and so on are all ideologies that influence us. We can choose ideologies, but more often they choose us, gently penetrating our thinking through culture or forcibly imposed on us by our states.
Ideologies are like maps, but whereas a map is based on objective reality, an ideology is based on subjective interpretations of reality. However, we need ideologies to help us make sense of the world and our place in it. But we also need to be aware of the dangers posed by ideologies that can lead us to disaster.
I have lived under communism, liberalism, and neonazism, and developed the Red Empire series of voluminous collages on canvas and plywood that speaks about a state combining several totalitarian ideologies.