The battle

I have spoken to the hippothontis tribe leaders and we want to be disbanded. i think we are getting bored and waiting for something to happen

You don't need anyone's permission to be disbanded. You just need to click "Quit Group". It's that easy.

no, the tribe wants to leave new athens, and we want the group to be shut down

True, we haven't been very active lately. What specifically would you like instead, once the tribe is disbanded?

i want to be proclaimed dictator

Well that's easy. Start your own group and tell everyone that you're the dictator. If people are happy with that then they'll join. If not then they'll ignore you.

I have no idea why you think you need anyone elses involvement to follow through on your ambitions.