[Even the basics are upsetting.]

I don't think there's anyone he sees as anything but a tool.

[Sora's had his own experiences with anger, both his own and others. Angering someone can be dangerous, but it can also be used to manipulate them. He's kind of surprised when Xion asks about replicas having hearts.]

I don't see what not. I would think a replica of a being with a heart would already have a heart, right? And maybe a replica of a Nobody would have the same chance to gain a heart. Although I don't think there have been any replicas of Nobodies.