Enuma Elish

What is of the hatred for Tiamat? Is she not the nourisher of all life and mother of the earth? I find it strange that so much anger is pushed towards a goddess such as Tiamat, because in the beginning once Ea is born, the "children gods" seem to party without rest that upsets Tiamat, Aspu and Mummu.  Mummu and Aspu desire to destroy the offending gods while Tiamat, the goddess and mother of the earth requests that we must try to be understanding.  However, one the other gods are notified of Aspu's plan of destruction Ea, grandson to Tiamat, kills Aspu and leads Mummu where he please by a rope in his nose.  Tiamat is spared but later tempered by the tempests of Anu where she is finally driven to evil. These people worshiped Marduk who is the son of Ea and Damkina, and was made more twice as powerful than any other god.

Now my questions are why would people choose to worship a god, who yes sparked their creation, but who killed his mother because she had endured an uncomfortable life since her children thought it was polite to do what they felt?  Is it because out of fear and terror they worship Marduk? Is it out of humankind's reverence for hostility and violence that still today shows itself across our mother earth(Tiamat)?  So why would man choose to worship a god that to my own eyes seem unjust in actions?  Perhaps it is that man should have never been created if we were created from hate and greed.