We're already well into the declining era of the Buddha sāsana. False teachings that reject rebirth are common, and Ambedkar's movement is one of those Buddhist traditions that reject many of the orthodox teachings such as kamma and rebirth, celestial beings, hell, and so forth. Dr Ambedkar was an academic, so his views are not surprising. No serious practice and too much theory will not lead to right understanding.
Follow the advice given in the Sallekha Sutta (discussed in a recent thread): Others may hold , but I will hold right views — thus effacement can be done.
• • • • (Upasampadā: 24th June, 1979)