Content Warning
The Hindu nationalist government in India is happy to use Buddhists and Buddhist pilgrimage as a diplomatic tool internationally, but they will not allow Buddhists to control their own holiest site.
There is a long history behind this - for anyone who is interested, I would suggest reading Verardi's _The Gods and the Heretics_. Raj and Indian textbooks blame the destruction of Buddhist monasteries in South Asia on Muslims, but the archaeological evidence suggests it was Shaiva and Vaishnava orders.