In answer to the original question of can he be so ignorant?, well yes he can but should that be a surprise ? I would suggest his views are not that much different than a very large number of people in this country and he/they do not think they are being racist or discriminatory. We all base our views/opinions on what we know/ learn and we are all subjected to a diet of stereotypes. Whether we chose to believe them or not is the key. We have all grown up with a view that Jews are money grabbers, the Irish are thick , Scots are tight, because these myths are perpetuated unless we challenge them. My stereotypes might be different than Dave Whelans, e.g. all Wiganers eat pies, but they are no less valid if I choose to believe them. The problem comes when I use them to base my actions/ manifesto on them. Jews may be money grabbers but does that mean one commits genocide? Poles may be taking plastering jobs over here (not the same as taking jobs from our plasters) but does that mean all foreigners should be sent home after a certain period of time?
The whole issue is far too complex for a bear of little brain like me, but can I say that I do believe all Wiganers eat pies, all Yorkshiremen have close liaisons with woolly creatures and people from Marsden have 4 thumbs?