Glad to have achieved my aim of at least messing up your plan!
Think I received tech from everyone else 
On a victory lap in my other game. Got yellow and blue to over-commit against purple, bringing down both blue and purple. Quietly amassed a force to pounce on yellow’s understaffed key stars. All three of them bowed out over a few days. Now just orange pissing around on the other side of the map while I mop up enough AI-controlled stars to take home the victory.