the.com/extremism
The belief that the moral high ground is best defended with a cliff edge.
means Holding political, religious, or social views so far from the mainstream that compromise reads as betrayal.
from From Latin extremus, the superlative of exter, outermost — the absolute furthest edge of anything, with no room left beyond.
Goldwater famous1964: extremism in defense of liberty no vice.
Horseshoe theoryFar left and far right bend to nearly touch.
Always relativeDefined entirely by where the center happens to sit.