The Annunaki did exist and were on Earth but they weren't supposed to be here doing what they did. They did not create us. We were their slaves. That's why they have been taken care of looong ago. Universal rule: do not interfere with other planet's business. Our real caretakers made sure the Annunaki fucked off. They might be fully destroyed.
The translation of the tablets is not fully correct. That's where it goes wrong. Nibiru isn't coming either.