Quote from the Spotlight titled "The Sovereign Aesthetic":

[6:28] "The good ETs are free will beings, and they really are adamant about that. You have to choose-... It's okay to choose to be a slave."

If the ETs really say that, they are not free will beings.

It's not okay to choose to be a slave, because choosing to be a slave means to collaborate with the enslavers.

So let me be clear:

If you think that slavery is okay because people choose it, you are the bad guys.

If you want to be a slave, you are the enemy of freedom. True free will beings would never be okay with that, because they have to fight you to protect themselves against your support of slavery.