There is a book called‘ Manusmriti’ the so called hindu law book.
It prohibited inter caste marriage, widow remarriage and all the best concepts of hindism and converted hinduism as the most humiliating religion.
The orgin of this book has taken place in post vedic period. Where the brahminical dominace was at the extreme. To khud samjo na ki yeh sb kiske profit ke liye hua...?
And some says ki if we will not save hinduism , to muslim population hindus ko dominate krne lagegi. There is a very authenticated report of United nations ki yadi muslim population double tezi se bhi badhegi India m to it will take minimum 300 years hindu population ke barabar hone ke liye. So chill kro. And try to establish peace.