She is gone buddy.....and it would be good if we keep the discussion on Hinduism...as there are many things even Hindus don't know about their religion....and ugly side of it that got introduced...
You are absolutely wrong.....
You think the decline of Buddhism is due to Hinduism as the OP claimed, which you're calling as the 'ugly side of Hinduism'
Even without considering the Islamic atrocities on Buddhists, from only Hindu perspective, there are two main reasons behind the so called 'decline' of Buddhism in India, its birth place.......
Firstly if you analyze carefully, you'll find that the countries where Buddhism as a religion gained immense popularity were religiously/spiritually 'vacant'......Buddhism wasn't supposed to be a religion, but they modified it according to their needs and made it into a religion...
Buddhism, like all other Dharmic religions stemmed from Hinduism....i.e India was already spiritually occupied when Buddhist philosophy arose....
Secondly, Hindus absorbed Buddhism, we worship Lord Buddha as an avatar of Vishnu....thus Buddhism became indistinguishable from Hinduism in India......
Thirdly, Buddhism has not been eradicated from India, despite of all the above facts, the present 'pure' Buddhist population of India is quite significant when compared to many Buddhist countries...