capitalism’s worst enemy has been socialism, most vocally communism.
what was the counteracting -ism to feudalism during the ages? was the counteracting -ism a different one at some point?
all replies welcome, serious textwalls and unserious oneliners alike vice versa


Christian feudalism imagined Islam as it’s enemy (first thing that popped into my mind, I’m not an expert)
Until you started seeing reformations where the enemy became other kinds of Christianity.
Realistically it’s Judaism not Islam… Islam believes in Jesus, Judaism calls him a false prophet entirely.