Bit of an exaggeration. It's not like people are calling to tear down statues of Shakespeare, Newton, or the Melton Mowbray pork pie factory.
Just a few people who, basically, only have statues because they were rich and paid for them out of the money made on what we consider crime today.
Savile's statue was taken down pretty quick, nobody complained about the loss of an 80's icon that many here probably enjoyed watching on the TV at some point. But maybe some people don't think raping and killing a million black people 200 years ago is as bad as raping some children 20 years ago.