"Those who choose the lesser evil soon forget that THEY CHOSE EVIL."
How evil eventually wins:
By not fighting for what's right, all things are eventually the lesser of two evils...but nevertheless, evils.
Nothing's "as bad as it *could* be"; also "nothing's as good as it *should* be".
Evil has won. A 'lesser evil' was chosen time after time...until everything is a 'lesser evil' (but still an evil).