Just some info on the definition of the word.
Xenophobe means that someone is afraid the aliens and is not willing to trust them or interact with them.
In that sense a xenophobe is not willing to accept an alien even as a slave.
So I believe it's right that xenophobes do not get a bonus for enslaving aliens. In fact they should get a minor hit in happiness imho for enslaving aliens.
I believe that empires that are planned to become slavers should never have the xenophobe or xenophile ethos as an available choice.
Xenophobe means that someone is afraid the aliens and is not willing to trust them or interact with them.
In that sense a xenophobe is not willing to accept an alien even as a slave.
So I believe it's right that xenophobes do not get a bonus for enslaving aliens. In fact they should get a minor hit in happiness imho for enslaving aliens.
I believe that empires that are planned to become slavers should never have the xenophobe or xenophile ethos as an available choice.