The question this axis asks
Should regions have powers of their own, or should one national government set the rules for everyone?
This axis is about the structure of government rather than its quality. A federal system divides authority between a national government and regional ones, such as states, provinces or cantons, and each level has powers the other cannot simply remove. A unitary system keeps authority at the center, even if it hands tasks to regional and local bodies.
It shows up in questions about who sets taxes and school curriculums, who runs the police, whether regions may have different laws, and whether a region can ever leave. People on the Federal side usually value local choice, diversity and checks on central power. People on the Unitary side usually value equal treatment, clear responsibility and national unity.