My main grudge against Whatsapp comes from the fact that my college forces us to use it since the official group of my class is in whatsapp. I don't want to run that proprietary spyware on my phone. I feel it to be like neo-colonialism. Notes,etc. are sent there. It would be better if they switched to something better like telegram.
Another thing is that it spreads fakenews and propaganda and many people believe them.
I believe that banning Whatsapp in India gives more privacy to Indians.
P.S: I am Indian