> "I don't think so" is not any kind of improvement there.

"I don't think so" is not about the core discussion, but a reflection of different interpretations to how you interpreted the statement. I then went on to explain what I meant, including how to bring the discussion back to concrete arguments, rather than making up my own interpretation (I don't like the term straw-man, which implies a bad-faith argument). You have a specific set of assumptions, which I take to be in good faith. I read the arguments and understand that there are a different set of assumptions to make (vis a vis different interpretations).

I'm sorry if you don't find it constructive in whole or in part.

I don't agree with the GP's point but I do agree with the defence against your counterargument. The GP clearly stated "owning land" - you might consider other forms of ownership a logical extension but that wasn't the context of the GP's point and thus you're being a little disingenuous to argue it in that way (one could even say you presented a "straw man argument").