It is a demonstration of how there is not simply one moderate position in terms of 'between two points' because the decided upon points are arbitrary.
If you ignore countless counter-examples and thousands of years to the contrary, sure. If we don't, political autonomy is typically far more limited than independence in relevant spheres. Autonomy in local governance, but not in foreign relations- or autonomy in budget policy (making one's own budget) but not fiscal/monetary policy (unable to dictate the currency being used).
The archetypical autonomy-vs-independence relationship for many westerners (and especially Americans) is the governmental concept of Federalism. American states are (or at least were) exceptionally autonomous, but not independent from the United States government.
Not really. Since the goalposts of comparison are themselves arbitrary, any logically defensible selection would be as legitimate as another. I'll point out that neither of us chose 'systemic genocide against mages/mundanes' as the extreme we were measuring by, even though we very well could.
Maybe I'm tired, but it reads more like a demonstration of gibberish. Like, I know all the words, but they don't make any sense in that order, and I can't tell what order they're supposed to be in.
As for the rest, like, okay, I guess? I never said anything about supporting mage autonomy or independence either way, so I don't know why you brought it up in the first place.
But for what it's worth, I don't think mages should be autonomous. At least, not any more autonomous than any other citizen of Thedas. Although I'm not happy with the level of autonomy that most people in Thedas have currently.