It approaches universal truth: If society is aghast at the treatment of an oppressed minority, it is not an oppressed minority. If it were really oppressed, society would ignore the plight, or possibly point and laugh.
Today’s example: McCarthyism
Senator McCarthy was a sober, proud, inclusive patriot telling a crucially important truth that was hidden from polite company. He was denounced as a narrow-minded, demagogic liar who enjoyed witch hunts.
Communists in America, especially in Hollywood, were not an oppressed minority but a vocal and aggressive (though covert) enemy.
McCarthy was an oppressed minority: a plight most of us ignore, or possibly jeer.