After an aspiring theoretical physicist cracks faster than light travel (in equation form only) the aliens that have been monitoring earth from a distance show up and place ships over every major city. There is some minor resistance in the form of some counties launching planes, which is put down with minimal casualties. They gather our world leaders aboard their mothership via teleportation.
The Aliens announce that they have been watching us for some time and would like to welcome us into the galactic community. However, due some erm... Questionable leadership decisions (gestures in general direction of world leaders) humans have proven that we are FAR too violent of a species to hold any power in this community, which has maintained a steady peace for thousands of years.
We are welcome to join them and will become full citizens with full benefits of their society. These include:
Medical immortality
Teleportation
Ftl travel (each member species will decide if we are allowed to visit their planet)
Unlimited energy
Unlimited food growth
Backup brain scans and cloning
Along with most benefits of adjacent technology.
Most jobs will be done by ai robots in this society. You will owe the galactic community a four day workweek, four hours a day, which will pay for highly advanced housing, transportation, food, and basic entertainment. If you want more, like ftl travel, you will have to work more. The job will be selected for you based on brain scan compatibility tests, and supplement knowledge will be provided via neural chips.
What's the catch? Humanity is a predator species with a long history of horrifying violence. We will never be employed in leadership, police/military work, or government work. Every 10k years, a review is done of member species to see if they have evolved past violent tendancies and are ready to begin a new phase of "leadership preperation" but we would be at the bottom of the list for the next cycle.
As a measure of goodwill, the aliens let us vote. We can either join the galactic community or not. If we choose not to, our minds will be wiped of this event, our leaders returned, and a certain physicist will have a bad case of amnesia regarding the night of her discovery.
The world leaders urge us to reject the aliens, as they want to keep their power.
So which way are you voting?