I believe it's a Tier-5 Pragmatic trait "Revered" or something like that. Which, you know, there should be some way of knowing that's about to happen. Even just a pop-up that says "Psst. Taking this race's homeworld will cause the rest of the universe to declare war on you. Are you sure you want to attack them?"
Interesting, I never thought of that being each race has only colonized 5-8 planets ideology points are low, maybe they are getting free ideology points from somewhere...'
Okay I have checked (localplayer 21) switched to them, they are benevolent by nature, they only have benevolent ideology traits. They don't have that Pragmatic trait so I don't know why everyone would declare war on me.
Truthfully I feel I won the lottery, I didn't know what number they were and just guessed from 1-90, and 21 happened to be them on the first try 
I think I used up my luck for the year 
