I love your idea and I've had a similar thought, where it seems like our society really needs a sense of community. Yes we have our discord groups, or fb groups where we are part of a community, but the anonymity is really hurting us. With the decline in religion and church, I've been toying with the idea of a community "church". This idea is similar to yours, except that there would be a community-based driven aspect. There would be a sense of gathering. People could come together for a mission (to help others). In your idea, it still seems like there would be separation of smaller groups and less of a community aspect. So, I'm not totally sure it would holistically bring everyone together. It would almost be just a rental space for events. Keep on brainstorming. You are onto something and keep us posted.