I'm a full on lefty, i.e. not one of the gammonese, but this isn't racism. It's an unfunny gag, and the guy (sorry, I mean I, being danny. Baker) should have thought more about it, but some old fashioned photo of a chimp in a suit is not a racist slur against what is pretty much a caucasian baby. I see why he had to be sacked, as it sets a precedent, but its "PC gone mad!".
All stuff like this does is shut down any dialogue, as people just won't say what they think, and then you get racism stewing inside people, which then bursts out when ie. the UK voted for Brexit.