There are 79000 temples in TamilNadu alone. Most of the churches and mosques are built upon temples destroyed by the invading hordes and conversion mafias. Many of the existing temples are hundreds of years old and are heritage buildings.
The rest of the abrahamic monotheistic faiths do not have idol worship and are barely two thousand years old compared to ancient Vedic Hinduism. Their wealth is looted wealth while ancient India is millennia old.
Christies and Sothebys and the British museum is full of looted treasures.