I don't think this helps. It's not just having a space to meet. It's having a reason to meet. Without the unifying force of religion or another philosophy, we invariably devolve into family-based group identity, which is another word for ethnonationalism or identity politics.
Identity politics, perhaps. Ethnonationalism, I don't think is an inherent part of it, as is seen in the universal audience of certain major religions, like Islam and Christianity