We're peacekeepers, my order, for a galactic republic. And some planets were tricked into seceding by a dark lord. Really evil guy. Mustache twirling villain who kinda reminds me of Christopher Lee. He build an army of droids and he's done some really evil things during the war.
But we're peacekeepers. There's something wrong about turning an order of peacekeeping monks into generals for an army of clones. And then so many treat those clones as expendable. They're people. Each of them are unique people even if they all share the same DNA.
And we're not shown that the Separatists are people too, just like the people we're defending.