Troublemaker Keane Pyzer had earlier refused to pay a taxi driver and he threatened the man with the garden spade before damaging his car.
Fiona Hyslop said the fact there are fewer black taxis had more to do with a fall in demand.
Graeme McLardy has been ordered to pay £750 compensation to the cabbie following the frightening incident in Hartshill.
He has been ordered to pay £5,500 in legal fees after an unsuccessful attempt to appeal the ban.
Sir Bill Wiggin, Conservative MP for North Herefordshire, wants to see better services for those with assistance dogs and for disability equality training for taxi drivers.
Police investigating the assault are issuing an image of two men they would like to identify.
Taxi passengers in North Yorkshire are facing having to pay five per cent more per mile in the face of appeals to increase and lower maximum permitted fares across the county.
Artur Nowostawski, 40, was charged with wounding, attempted robbery and possession of an offensive weapon, after an attack on the driver on April, 29.
New specialist cameras are being used by the Midlands council in a bid to catch drivers committing a serious offence on the roads.
A taxi passenger from Carlisle who made off without paying the fare was known to the driver because they had previously been in relationship.