The Thuggees have gone. Most of the forests where they thrived, in a small region of India, is gone. They aren't there. And they are certainly not an integral part of "Hinduism", if such a religion really exists as a united entity. Remember, deviants and crazies are there in every religion, but in a disproportionate fashion in Islam.
They are not. They are fewer in numbers and deeper underground.
Hindu polytheism is all inclusive. They worship EVERYTHING and they deity for everything. They worship goodness and they worship wickedness and all in between. Even if most of Hindu prefer to worship good things
Excluding one aspect of life would violate the integrity of their religion and would introduce the Christian/Jewish/Muslim exclusivism.