How many members can a tribe acquire before it& #39;s no longer a tribe?

Whatever that number is, it& #39;s the number of members required to form a metatribe.

A metatribe is not a tribe but a source of extremely reductive characterisations used to infer one& #39;s propensity for loyalty.

Why is this distinction relevant?

A metatribe mimics the benefits of tribal membership (eg, community, shared resources, meaning, protection, etc.), but it& #39;s an artificial substitute/simulation and man& #39;s adaptation to technological change.

It doesn& #39;t impart meaning, just reductive characterisations; it doesn& #39;t evaluate you, it evaluates your immutable characteristics.

Stripping its subjects down to their immutable parts and making humanity an object for consumption is its modus operandi.