Really excellent point here; recognizing that these tactics- while on the surface innocent- are actually a form of thought control (I determine what the content of your speech is, not you) makes it necessary to reject any attempt at a pretense of civil discussion. Such a discussion is not possible- you a priori admit guilt to the worst demonic characterizations they care to use. The rules of the battlefield require both sides to agree; if civil discussion, okay- but if one side plays dirty, you have a moral responsibility to destroy them beyond reason so that they at least reconsider using that tactic. Never give in.