Either your vagueness is intended to make the point that "both sides are just as bad as each other" (which is unhelpful because there are more than two sides to politics), or you're dogwhistling that it's "the other side" that has the terrible philosophy.
Let me therefore try to clear up that ambiguity by offering a solution to your exercise: The most dangerous political philosophy is ethno-nationalism.
Let me therefore try to clear up that ambiguity by offering a solution to your exercise: The most dangerous political philosophy is ethno-nationalism.