How might a megalopolis and pluralism be related to each other?

Megalopolis: A substantial conurbation, where at least two extensive urban areas have spread outward to meet, framing an option that is bigger than a city; a megacity.

Pluralism: The quality or condition of being plural, or in the plural number. The condition of a pluralist; the holding of more than one religious living at any given moment.

A social framework dependent on common appreciation for one another's societies among different gatherings that make up a general public, wherein subordinate gatherings don't need to spurn their way of life and customs be that as it may, rather, can express their way of life and take an interest in the bigger society free of partiality.