Is Aikido a tool? For me it is a way. Those techniques within it may be tools as expressions of the way. The motions of Aikido are not tools but natural pathways. If anything I would rather say I am a tool of Aikido.
You can be aggressive if you like and destroy someone but that's not Aikido. Those who think it is are misguided in my opinion.
Peace rules, it is infinite. How long can you keep angry? How long can a raging fire last? How long can a storm last? They all return to peace, nature always takes over. People like to think war or violence desroys peace. Impossible. Peace is always there and violence has to dissipate after it's brief appearance.
If I understand you correctly you say that peace is the normal level that nature resides in and violence etc are the disturbances of the normal mirror like water?