The asshole’s last ask before I managed to block and report their bigoted ass was screaming for documentation on “oppression” not just being “unjust treatment”.

Merriam-Webster Online, which is not exactly big on, you know, actually theory of -isms and oppression, defines oppression thus:

1 : unjust or cruel exercise of authority or power b : something that unjust or cruel exercise of authority or powersomething that oppresses especially in being an unjust or excessive exercise of power