I am both communist and atheist and I have no hesitation in admitting that. The muslims always cry "Islam in danger" and "Zionist conspiracy" is their favourate war cry!
Pl understand one thing, the majority community in India have crossed the threshold limit of their tolerance and are in no mood to tolerate the antics of the followers of the semitic religions. I know very well how a religious person will feel, if an irreligious atheist like me can get irritated (I don't have any hatred based on religion as I believe in the principles of neo-humanism).
The so-called harmony etc exists only till the majority in our country are Hindus. Once the muslims become majority in any region, they will clamour for imposition of Islamic rule and Shariah. Even in small state like Kerala, the muslims had demaded and got a separte district called "Malappuram" by blackmailing the then Communist Govt.