Indeed, the duopoly tends to become attached to social divisions, and you could choose any of those divisions to label the parties: Liberal vs conservative Se

Indeed, the duopoly tends to become attached to social divisions, and you could choose any of those divisions to label the parties: Liberal vs conservative Secular vs religious Governance vs identity politics The list goes on and on. In an odd historical analogy, the electric charges were originally assigned "negative" and "positive" according to what happened when they were combined, with no hypothesis as to the underlying cause.