It's my understanding that, if a member takes up their time and then introduces a motion at the end of their speaking, even if the motion they introduce is ridiculous and completely out of order, that does represent the end of their speaking. They don't then get to say they want to start all over again and talk about everything else.
He brought a motion. It was rejected. That means his turn of speaking is finished and we should now move on so we can at least, if we're going to be here for hours and hours and hours, maintain a modicum of professionalism here. Chair, you're doing an excellent job; you're very patient. I would ask my colleagues to remember how this place is supposed to run.