Naomi - // What are you talking about? //
Assuming that your rather terse question is aimed at me, without the courtesy of directing it personally -
it is obvious that yourself and Theland believe that you are right, and will brook no argument, so your debate was, is, and remains, pointless.
Hence the simile offered, which is really self-explanatory - two people arguing over something neither of them has a use for, a pointless fight, stubbornness personified - I am sure you get the idea.