How many hindus are aware of the fact that Hindu (Sanatan Dharma) religion is in danger?

Yes you are quite right,the hindu dharma is really in danger and this caste system will lead us nowhere.Most people and particularly dalits are converting to other religion because of this.Moreover other religions provide more freedom and are free from several evils of hinduism.And I totally agree with TAZ that it isnt a religion but just a way of living life.