Hi Jeyaseelan
He is not a fool. Answer is simple. West has an anti-Tamil policy based on their value system - protect friendly states regardless of their brutality. Replace Sri Lankan state and put Zimbabwe or North Korean state in place - John Holmes would be shouting from the roof top about the plight of the civilians and would condemn the state outright without mincing his words. You know why? These are hostile states for the west and west would be happy to weaken them. So Holmes would use his UN identity to promote West's policy.
To add to this he is Brit. A non-British European in Holmes' place would probably helped Tamils a bit more within his / her capacity. The fact that John Holmes being a British from Foreign & Commonwealth office back ground also disadvantageous to Tamils. It is always a Brit who would go an extra mile to disrupt Tamil aspirations. It was British Diplomats who worked behind the scene to put the LTTE on EU ban list. It was them who worked quietly to encourage Sri Lanka to go on a military path and abandon the 2002 ceasefire. And Historically it was the British who betrayed the Tamils and put them into this forced marriage with the Sinhalese in the island of Ceylon and thereby created this time bomb. They did this for their geo-political interest of the 1950s. Interests might have changed a bit now but still the Anti-Tamil British policy remains. British policy has always been to talk nicely to Tamils and then them stab them in the back when they are not looking. To date this policy remains in tact.
West is simply waiting to see Tamils become completely defenseless on their own right - full destruction of LTTE. After that they plan to pick Tamils plight up and work against Rajapakse Government. Their idea is to use the economy to topple Rajapakse and then crown Ranil or Chandrika - prince and princess in waiting. So much for the lofty western ideals of humanism and democracy! But what they do not realise is the mindset of the Sinhalese. If and when Rajapakse is successful in destroying the Tamil defense in full, the Sinhalese would crown him as their life time emperor and west would have a Sri Lankan state which is least friendly to them. But that is tomorrow's problem right? So the likes of John Holmes or his mates at the Foreign office do not care about that eventuality and that is for their successors to handle. In the mean time thousands of Tamil civilians would continue to perish at the hands of brutal butchers of Sri Lankan state.