OP, you do not even realize how much hatred the Brahmanic religions had for Buddhism and Shramanism in general. Let me repost my another post from another thread here:
Mihirakula is said to have razed 1600 viharas, stupas and monasteries, and “put to death 900 Kotis, or lay adherents of Buddhism” [Joshi, 404].
The celebrated Tibetan historian Lama Taranatha mentions the march of Pushyamitra from Madhyadesha to Jalandhara. In the course of his campaigns, the book states, Pushyamitra burned down numerous Buddhist monasteries and killed a number of learned monks The archaeological evidence for the ravages wrought by Pushyamitra and other Hindu fanatic rulers on famous Buddhist shrines is abundant.
The Brhannaradiya-purana lays it down as a principal sin for a Brahmana to enter the house of a Buddhist even in times of great peril.
The drama Mrchchhakatika shows that in Ujjain the Buddhist monks were despised and their sight was considered inauspicious.
The Vishnupurana (XVIII 13-18) also regards the Buddha as Mayamoha who appeared in the world to delude the demons. Kumarila is said to have instigated King Sudhanvan of Ujjain to exterminate the Buddhists.
Yuan Chwang’s account reads, “In recent times Shashanka, the enemy and oppressor of Buddhism, cut down the Bodhi tree, destroyed its roots down to the water and burned what remained.” [Watters II p.115] He also says that Shashanka tried “to have the image (of Lord Buddha at Bodhgaya) removed and replaced by one of Shiva”.
Madhava Acharya, in his “Sankara-digvijayam” of the fourteenth century A.D., records that Suddhanvan “issued orders to put to death all the Buddhists from Ramesvaram to the Himalaya".
Similarly, at Kushinara, where the Buddha had entered into Mahaparinirvana, the cremation stupa had been converted into a Hindu temple, and on top of it stood the temple of Rambhar Bhavani when Cunningham discovered the site in 1860-61.
According to The Rajatarangani (IV/112), Chandradip, a Buddhist ruler of Kashmir, was killed by Brahmins in 722 AD. His successor Tarapida was killed two years later. The newly anointed Brahma-Kshastra (Rajput) rulers usurped power in the kingdoms of Sind and Kota. Graha Varman Maukhari, married to Harsha’s sister, was treacherously killed by Sasanka, king of Gauda (Bengal). He proudly destroyed many stupas and cut down the sacred Bodhi tree at Gaya.
According to Gopinath Rao (East & West Vol 35) the old tribal shrine at Jaganath Puri was usurped by Vaisnavas and the walls of the temple even today displays gory murals recording the beheading and massacre of Buddhists.
Epigraphica India Vol XXIX P 141-144 records that Vira Goggi Deva, a South Indian king, described himself as… “a fire to the Jain scriptures, a hunter of wild beasts in the form of the followers of Jina (Jains) and an adept at the demolition of Buddhist canon”. It also records “the deliberate destruction of non Brahminical literature like books of Lokayat/ Carvaca philosophy by Brihaspati mentioned by Albaruni in the 11th century.” The huge Buddhist complex at Nagarjunakonda was destroyed. According to Shankara Dig Vijaya, the newly anointed Brahma-Kshastra kings ordered every Kshatriya to kill every Buddhist young and old and to also kill those who did not kill the Buddhists. A Jain temple at Huli in Karnataka had a statue of five Jinas (Jain heroes) that was re carved into a Shaivite temple with five lingas.
In Kanauj where Fa Hien had seen two monasteries of Little Vehicle, his successors Song-Yun and Tao-Sheng neither monks nor nuns, though the temples were numerous. This is attributed by him to the Huna invasion.
"But even Kanauj, the metropolis of Harsa, the famed patron of Buddhism and Buddhist pilgrims in the first of the seventh century AD, is seen populated by anti-Buddhist Brahmanas and Deva-worshipers and the number of temples exceeded the viharas"[Pg.298]
"The puranas, the Mrchhakatikas, the Yajnavalkya-smriti, the Rajtarangini, the works of Kumarila and Sankara, the accounts of Chinese travelers, and the histories of Bu-Ston and Taranatha, do seem to point to deeper hatred for Buddhism.""The mounting tide of anti-Buddhist propaganda in Brahmanical literature seems to have reached its apex in the hands of Sankaracharya........Sankara's biography tells us that the great guru led a religious expedition against Bauddhas and caused their destruction from the Himalayas to the Indian Ocean".
1. Kautilya's Arthashastra contemptuously describes the followers of Non-Vedic religions Vrsala or Pasanda (Sakyas, Ajivikas etc), assigns them residence at the end of or near cremation grounds. (Arthaśāstra, II.4.23; III.20.16.)
2. Saurapurana says that the Charvakas, Buddhists and Jains should not be allowed to settle in a Kingdom (Saurapurā a, 64.44; 38.54).
3. In Uttar Pradesh, we are told, forty-seven deserted sites of fortified towns in Sultanpur district are the ruins of Buddhist cities which were destroyed by fire when Brāhma ism
won its final victory over Buddhism. (Jha, P 35, "Looking for Hindu identity)
Recently I was reading the travelogue of a Magadhan Buddhist monk called Sunyasdi who had traveled to Lanka from Nalanda to understand the meaning of Prajna (Irony?), and who later traveled to China and Korea, where he settled till his death. He also writes that the while traveling through the Shaivite Kingdom in South, he had to walk at night because they had sent assassins to kill him. Also, he completely avoided going to a village near Jalandhara because it was dominated by Brahmins. And this is in 14th century India!