- Kaali drinking blood of Raktabīja.
- Bheema drinking blood of Dushasana.
- Draupadi intending to drink blood of Bheema.
What's the intent behind drinking blood?
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All these examples has nothing to do with Hinduism.
Kaali drinking blood of raktabija.
Because Raktbija got boon that when even his single drop of blood will fall on earth, then from that Drop another Raktbija(demon/devil) will be created. And death of Raktbija was necessary to save world. Then Mahakali came in front and to avoid any drop of his blood from falling on earth she herself drank his whole blood so more devil's generation can be stopped by his blood.
NOTE This action of Mahakali was only to protect mankind from cruelty of Raktbija. Drinking blood was only option to kill him. From where Hinduism came here. This act of Mahakali is directly related with Humanity, not with Hinduism because she did this not only to protect Hindus but to protect all mankind including all religion.
Bheem drinking blood of dushashana.
Bheem took promise of drinking blood of Dushasan and also swear that he will wash Draupadi's hair with his blood. He did that Promise when Dushasan brought Draupadi in Sabhaa by dragging her by hair.
This Promise/swear of him was the result of his anger, not the result of his teaching of Hinduism. In anger one can't judge good or bad. So you can't match inhuman promise of him with Hinduism.
Draupadi intending to drink blood of bheem.
I never even heard anything like that.
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