What does "hunkered down in holy glory" mean?

Here is the whole quote:

The film glorifies the Confederacy as if they were a bunch of highly principled martyrs hunkered down in holy glory instead of an entitled mob of human-trafficking murderers, rapists and traitors trying to destroy the United States

This doesn't check out for me. The way I understand "hunker down" is something like (physically) "squat". Or more metaphorically, stay in ambush, wait for something to happen in some place.

I cannot figure out how that lowly posture could rhyme with glory or martyrdom, or any cultural reference it may hint to.


Based on the context, hunkered down probably means:

American Heritage Dictionary

hunker

intr. v.

  1. To hold stubbornly to a position. Usually used with down:

"As the White House hunkered down, G.O.P. congressional unity started crumbling" (Time).

Hunkered down in holy glory might be approximated as:

stubbornly holding onto their holy and glorious position