Who left you to join the empire?
iMassacre should have realised that jumpgating everyones border worlds would be seen as an aggressive act and force them to fight against you. You need to talk to iMassacre, Rick, regardless of who [V] is attacking, iMassacre is responsible for everyone turning on the Cybernetics.
It makes sense for the Freemachines and ourselves to be allied, because we share no borders. And we made a truce with the Dynasty along our borders as soon as we bumped into eachother. Now if they attack us, they lose their tech bonus as well. You guys should have been making the same kind of deals, rather than grabbing every world you possibly can.
These alliances wont last forever, but when they break down we'll cede worlds and strike deals so that we're never fighting more than we can handle. We wont be winning anytime soon though, we're nowhere near any of the victory conditions.
You should be making the same kind of deals before you get picked apart entirely.