a group of people who are thought of as being all the same: The study documented the diverse backgrounds of the Latino population, which is often viewed wrongly by outsiders as an ethnic monolith.

What does it mean when something is monolithic?

1a : of, relating to, or resembling a monolith : huge, massive a large monolithic building an influential monolithic organization. b(1) : formed from a single crystal a monolithic silicon chip. (2) : produced in or on a monolithic chip (see chip entry 1 sense 6b) a monolithic circuit.

What does it mean to not be monolithic?

If you describe something such as a building as monolithic, you do not like it because it is very large and plain with no character.