thank you
i still think the 2nd and 3rd portals are glitched though. When the second one spanws (tried 20+ times) it always gets killed (even on the far far corner or a large galaxy) the unbiden hit the 2nd portal with countless fleets.
what im trying to do is have 80% of the galaxy occupied by Unbiden, Abarrent and Vehermont & protention split between them with whats left being composed the few remaining empires.
so when the 2nd portal swawned i used console to play as them and made their stuff invulnerable so when the 6 unbbiden fleets showed up against the 1 unbarrent i won. then i spent 10 years building defences, anchors and stations in the few systems surrounding the 2nd portal.
once i returned control to the AI the abarrent sent everything at the unbidden portal but because the unbideen had anchors the abarrent fleet just floated above the unbidden portal not atttacking it or taking any other action. Then a combined AI fleet took the abarrent portal and the unbidden mopped up the 500k abarrent fleet.

it seems their only purpose is to defeat the unbideen and not establish their own beachhead
Edit: are you the Dominion founder?