It's a human failing most (all ?) of us can be guilty of, Naomi. Faced with something that cuts away one's argument, either misinterpret it to make out it's wrong, or simply ignore it and continually to repeat one's flawed argument in the hope of convincing. You may recall the fools that kept claiming a certain bus had lies written on it, despite numerous attempts to show why that was clearly not so. Not much one can do to counter in those circumstances. Just shrug and let third parties reading realise the situation.