A political ideology with cult-like tendencies.

In the US in 2025 it bears a strong resemblance to a hobby at times. No shade intended either. I’m a card-carrying member myself.

Communism. There’s iconography, a separate way of using language, chanting, gatherings, books, meetings, clothing, hero mythology, doomsday plans of a revolution not unlike a rapture, and in some sects there are charismatic leaders and polyamory.