Why did Zoroastrianism fall but Hinduism didnt?
The Zoroastrians had the privilege of a mighty empire of which ruled the entire Middle East along with parts of South Asia in the form on Achaemenid and Sassanid empires. The latter especially had routinely humiliated the Romans and was an unstoppable force until the Arab invasion. The question remains as to how this highly centralized empire fall to a few thousand horsemen from Arabia while the fractured kingdoms in Bharatavarsha prone to internecine warring manage to thwart their attempts once for all. Here we will concentrate on the Arab attempts rather than the later Turkic Muslims who of course far more successful in making inroads into India as that was a different era (300-400 years later) and all the different social, political, economic,military and religious differences it entailed. Perhaps we need to realize that first and foremost Zoroastrianism like Buddhism places ethics such as non violence on a rather high plane Firstly Zoroastrianism was thoroughly unorigi...