Alex Bennett answered your objections superbly., so I won't repeat his excellent counter-arguments. I will add that there are times when the dictionary definition is the best one to use. There are other times when a better definition has greater explanatory power. That is what I am doing with this series. As Alex correctly observed, I am defining right and left on the question of power concentrations.
You repeat the notion that government inherently is anti-individual. This is obviously myopic. One of the many reasons I stress seeing politics as a dispute over power concentrations is, as I said in Part 1, that the structure of power concentration is what is most important not the particular manifestation of power. Using this definition that has more explanatory power than an ideological or dictionary definition, we can critique both government and non-governmental institutions as to whether they seek to concentrate or circulate power.
Another excellent advantage of seeing politics in terms of power concentration is that it exposes a central hypocrisy of some on the right-wing. They oppose only power concentrations in government but approve of, even actively work toward, power concentrations in non-government entities such as militias and corporations. All excessive concentrations of power are causes of injustice. Yes, those who seek to conserve imbalances of power are correctly labeled "right-wing," those who seek to rectify those imbalances are correctly labeled "left-wing." This is the case whether the target is government or non-government institutions.