Being non-partisan or independent has nothing to do with being in the "exact middle." I don't even think that's a real thing, nor did I ever imply it was. A better example is that, given an election ballot, I might split party lines rather than toe it unconditionally. I register as neither party because I generally disagree enough I don't wish to be affiliated with their policies. It doesn't mean I don't agree with some. Perhaps one election cycle I swing more left than right and the next I swing more right than left. It doesn't mean one cycle I identify as a Democrat and the other a Republican.

Since you keep baiting me with your straw man, I'll address the example: I neither want to torture immigrants nor do I want to give free healthcare to non-taxpayers. So, given your straw man, that would posit I'm in neither party's camp.