The trouble is that the professor (Keith A of Hertford) is still smarting as a result of him being shown to be a racist. Not only has he been "outed" as being a liar, the Wheatcroft fiasco, he has now been "outed" as a racist.

His problem being instead of acknowledging he is in the wrong he will continue to dig and dig, seek to justify his own position which only serves to further undermine what little standing he(if he has any) has on this forum.

Ignorance can be rectified, the professors problem is far deeper and probably incurable.