Suepp has hit the nail on the head.
Holding a chair for someone is hardly the same as being racist. When I was a child many years ago, sadly, I didn't know any better and I had a gollywog and indeed a collection of Robertsons badges. But times have moved on and they are racist just look in to their origins.
If yopu can't see that try selling them in Brixton and see how long you last.