"Looks like the troll managed to divert this subject away from the awkward facts and turn it into a personal slanging match thus allowing Pervy Damien to ride off unscathed into the sunset"

There really is only one way to deal with his ilk, and that is to ignore them completely? You will never change them or their opinions by getting into arguments with them. They don't come here to discuss, all they want is to cause disagreement, division and rancour. They get a massive hard-on from seeing the result of their efforts to achieve those things. When you destroy the arguments they put forward, they wriggle, they ignore your points, they twist your words, and they lie.

In short, they are worthless pieces of shit, undeserving of anyone's attention here.

Freeze them out.