Ambedkar himself admired ramanuja , advaita . He said in his annhilation of caste ” no foreign ideology is necessary…” . So, no, he didnt see Hinduism as without hope. As for moral development in India is concerned, Coming of Islam was a big factor in all round under development altogether. There are many more people in Hinduism who stood up on issues of caste and they were allowed to criticise religion in its entirety. Ambedkar was made chairman of constitution by Gandhi and congress whom he criticised a lot. He visited and praised rss in its service as well. One cant say that of Islam. Islam kills its critics. so, no, I dont hold the same degree of hope for thee. As for borg, that is more apt for christianity and islam. It is not Hinduism that seeks converts.