My feelings about why tyrants must be dealt with violently are pretty simple. They already are in control through generations of apthetic approaches to the issue. They do not intend to release that grip and have become accustomed to utilizing the massive arsenals they have accumulated. They are killing people at an unheard of rate and they have only picked up steam. They are absolutely willing to kill to enslave us and most are too afraid of death or physical harm to stand up.
I have come to the conclusion that they are less willing to die for it than I, and will kill their pigs until they relent and set my people free.
I understand your logic and intention and agree that we all have the right to self defense. What I have learned is that they only have our own power to work with and they get that through our own denial of our own power. By working to increase internal awareness of our denials and to end them, we bring new balance. The form that this takes is up to our own free will. For me, that means non conformity and the intention to build better ways of living than is mandated by these corrupt, artificial hierarchies.
May we all know liberation!