Xenophobe offers:
(a) Xeno-Purge
(b) Xeno-Slavery
(c) Monument of Purity (+10% happiness)
(d) Anti-Xeno policy accepting pops
(e) No government, but unlike Collectivist it also doesn't REMOVE government options
So it is a niche ethic, but has it's use.
From a fluff perspective a Xenophobe empire can be played as either racist or isolationist, although the game mechanics obviously are better at representing the former.
(a) Xeno-Purge
(b) Xeno-Slavery
(c) Monument of Purity (+10% happiness)
(d) Anti-Xeno policy accepting pops
(e) No government, but unlike Collectivist it also doesn't REMOVE government options
So it is a niche ethic, but has it's use.
From a fluff perspective a Xenophobe empire can be played as either racist or isolationist, although the game mechanics obviously are better at representing the former.