Peace is more harmony from within, rather than a condition that the rest of the world is in. It's about how you react and respond to your surroundings. I don't think it really matters what is going on around you or what type of background or history you have. It's about accepting the reality of your circumstances and finding a way to harmonize/blend with them. It's admittidly easier to do when your life isn't all that difficult, but the focus should be on how to acheive this state of peace and enlightenment in YOUR particular circumstances, whatever they may be.
True enough. But O Sensei was not just talking about peace of mind or just of a way to personally deal with your circumstances. When talking of peace he was talking about world peace as a goal of Aikido.
And as we all practice Aikido I think we should ask ourselves in what way are we contributing to this goal?