Good Question. Let me tell you why civilized society like Hindu souciety don't do such kind of vandalism...
We respect our elders Our parent will not allow to do vandalism. You ask 1000 Hindus to gather for some protest, hardly 100 will come. rest of all will stopped by there parent. Most of Teenage Hindus are busy in preparing for ENgineering and medical seats. Those who are graduated are busy in job or searching job....
This is the reason why Hindu don't react...
Hindus react only when its too much.. when it is unbearable.. when it is un-tolerable.
And that is the problem...thats when it becomes too late....50 yrs too late.