Sadly, ut becuase a few powerful events happened does'nt mean Hinduism is going down the drain. Firstly people like you who just see what the media wants to see are the people who should be ashamed.
Secondly "All that glitters is not gold" and some of the so called Hindu leaders are'nt what they are.
Hinduism is living amongst the people who beleive in Hinduism as a beleif and not as a relegion. THere are factions in India that commit atrocities in the name of hinduism that does'nt make them Hindus. Tey are no different from the Al-Qaeda terrorists and their jihadi movement. So don't jump to conclusions because a few people are doing the wrong thing.
Sankaracharya in question is not a true hindu spritual leader and he's probably one of the few leader that has so much Political power that he can become the next prime minister if he wants to.