I don't think so. The problem is that heresy IS off the rails. The moment you accept two contradictory ideas as true, it becomes possible for you to reason yourself into any absurdity whatsoever. It isn't even some abstract philosophical idea, but a mathematically proven fact. (The Principle of Explosion.)
The longer one stays in it, the more one sees the contradictions and wilfully chooses to compromise on principles, the more this manifests and therefore the crazier one's positions start to become.
The preceding is just the intellectual manifestation of the problem. Add onto it that as the Fathers teach, our thoughts are not our own but are a mixture of what is inherent to our own soul and what is coming from the spirits we interact with. By consciously compromising Truth and Faith (in the case of someone like Fr. John who knew Sergianism as heresy and swept that under the rug for union), one enters fully into communion with demons.
Those demons already, for all people, are trying to poison our ideas and ways of thinking with falsehood. Those outside the Church and worse, those in apostasy, additionally have their minds subverted and can be easily manipulated. That is why for example, Fr. John and Craig do not think they are wrong. They are comfortable in heresy and demons can very easily suggest plausible-sounding reasoning to justify actions and words which they think of as their own, and correct. Even inside the Church it is very, very easy for us to fall into it.
Every heretic, every apostate, every atheist, every pagan, every Jew, will come into a debate with demonic thinking. These may sound very convincing to the inattentive or uninformed, or really anyone who does not honestly seek the truth out in humility. Just read the comments from their supporters--they can't see truth. The positions are not truly their own but were whispered into their minds by hyperintelligent malicious entities, who could craftily design arguments as easily as you and I breathe. Only because God restrains them, have they not presented through our opponents such brilliant deceptions that all of us would have been convinced.
Evil may be deceptively clever, but it is also insane. The World Orthodox position eventually devolves into mad arguments when you dig deep precisely because it is a world-view that contradicts itself. (Principle of Explosion, once again.) So does every false religion. There is no way to have the debate without it--one just has to address the madness head-on.
