World states and confederations have always been a bad idea since the beginning of time.
... but they have been trying to put their worldwide seafaring empire back together for 12,000 years since it was destroyed. The Bible enshrines their pitiful drives in the story of the Tower of Babel.
You're not smart enough, Melonheads. You're not much brighter than the hu-mans you seek to rule over nowadays. A little bit of brains is usually just enough to get yourself into a world of trouble you can't get out of.
You interbred too much with the slaves and lost all your good sense. You will never recover your empire because the truth is that it is remote from you both in time and in character. Your ancestors were much more intelligent and their slaves were a lot dumber. Things are different now and all you are really left with is the power to destroy. Creation eludes you because you have lost the knack of it.
All your schemes will come to nought except the world will lie in ashes.