[dude with glasses in a communist t-shirt, arguing] I'm the only leftist here, your opinions are TRASH
[dude holding a theory book on smug, arguing] Read theory you losers, you're all WRONG
[dude in an anarchist hoodie, arguing] Nuh-uh, I'm the only leftist here, you're SHITLIBS
[the three dudes are now caught in a cartoon fight, glasses gone flying, punches everywhere, while a firing squad of nazis are targeting them with rifles]
[a confused nazi asks] Why… why are they still arguing?
The modern left-right political spectrum only makes sense in a modern sense. Trying to apply it like it's some sort of universal law is stupid. Monarchism, for example, can't be placed on the spectrum because there are different types of monarchies that are radically different from each other and there are different monarchs within each of those systems that are radically different from each other.