Why are you an atheist?

[DodosAreDead]

I can't bear to see my mom worshipping a god who apparently denied food to a stray starving dog.

Is it a man pretending to be a god... I don't follow. Could you clarify?

I don't pay close attention to it, obviously, but from what I gather he's a reincarnation of god. Hinduism has one aatma/god/ultimate deity or whatever you choose to call it, and crores of reincarnations. There's the Destroyer, the Creator, and a third other important one, and then several other smaller ones. There's an adorable potbellied elephant, for example. (He loves food, travels the world on a mouse roughly 1/40th of his size, and has very large flappy ears. My spirit animal, except the ears.). Then there's a flying monkey. There's a blue skinned yogurt stealer. 
Basically, this guy was believed to be another such reincarnation of god. He supposedly wasn't pretending. For all we know he could be a rapist who liked fucking pigs in his spare time. But it's not one of those modern day guys who pretend to be god and has a large following. This was thousands of years ago.