I agree with you, ownership is more nuanced than threat of violence. And threat of violence is more nuanced than power and control. If somebody tried to take your blanket, then you may be inclined to report it to the police, and men with guns would show up at his house and take it back for you. That doesn’t make you an oppressor.
Linus Torvalds wrote git in two weeks. In a CAVE. With SPARE PARTS.