Au contraire, I find your understanding of the topic well-rounded and appropriate! (But maybe that's because I'm just as late to the game? lol)
You're right, we can't claim this is our idea, and yet, I don't think anyone else can, either. So we're just as much the crafters of the idea as anyone else is :)
Anyhow, keep on thinking about and writing about liberty. You're good at it.