Absolute power corrupts absolutely, and all that.
I don't believe in guns paving the way for freedom, though, because any time somebody has a gun and uses it, s/he will restrict someone else's freedom.
It's just the way it is, and you can rant away about freedom fighters and the ability to defend yourself and your property all you want. It's just the way it is. Give a person a gun and the gun will corrupt, eventually. "Oppressor" is just a fancy word for "enemy".