You know you've lost it with Hollywood Cal. when you find yourself rooting for the villains in all their crummy movies; I noticed that when I found myself pulling for Daniel Day Louis the whole way in 'Gangs of New York'...
These BBC 'early man' things have the same effect on me, I keep thinking there's a happy ending in the picture somewhere, i.e. some nice, big kitty cat might come along and get the nasty monkeys.
This one was worse than most, sort of archetypal, and the first reaction you'd have is "sheesh, these guys are acting just like demoKKKrats...."