> When you occupy someone's land, there can never be peace until they get their land back or are fully exterminated or controlled militarily
This is advocating for destroying an entire country and deporting or killing the people in it. This is the context in which I read your comment, because you came to their defense. I read your comment as explaining why you thought their comment was a perfectly OK one.
I'm happy to read you don't actually agree on this with them, and I think we pretty much agree.