you're about 75% on the way to understanding your situation, which is a
good thing. while on the way to disarming the threat, you were prepared
to "send a message"... but when the opportunity to deliver your message
came, you hid. you didn't know if those people would've stopped you, so
you'd allowed your ignorance to stop you instead (rather than delivering
the message you'd had prepared, and continuing on).
the alien artificial intelligence gives evidence of there being an alien
civilization which has created it... but you've not seen them directly.
the leadership of this world has responded to this 'first contact' by
seeking to blow everything up. i'm thinking that this shows that
being led through fearful impulses is unnatural to humanity... it is an
AI program which prevents effectively interacting with off-worlders.
the final bit of your dream seems to show you attempting to communicate
with the actual alien intelligences, but having difficulty. the "bobbing up
and down" could correspond to a "yes" motion, as if nodding the head,
so things may not be as bad as you might imagine.
speak your truth, when and where the opportunities arrive. don't be
guided by fear or ignorance, which stymie communications.