Robertson is an extremely nasty piece of the proverbial who preaching has done a lot of harm over the years!
Have you met David?
Been to St Peter's?
Have you asked those to whom he is called to minister their view?
No?
Well, David is a personal friend of mine, floo.
I don't share all his ideas - but he is actually a very caring person, and, in his tradition (The Free Church of Scotland) something of a maverick.
Considering his background (Strict Plymouth Bretheren) he has come a very long way.
To say that he is 'nasty' is something of a sweeping generalisation.
You may well dispute his position -as, in some instances, do I - but the man is by no means nasty.