However, a slave uprising led by the Gith shattered the Illithid Empire and reduced them to terrestrial monsters and a few colonies seen in 's present day, the githyanki and githzerai hate mind flayers more than anything, including each other.

Source: https://www.cbr.com/dnd-mind-flayer-history-tactics-campaign/

If using Illithid Powers, grab "Psionic Overload" and "Stage Fright" to dish out some extra damage and make it harder for the enemy to hit anything.

Source: https://gamerant.com/baldurs-gate-3-best-barbarian-class-build-bg3-subclass/

In short, if players use this weapon and helm themselves while accepting the gradual transformation into an Illithid, then they walk the very same path as Balduran.

Source: https://gamerant.com/baldurs-gate-3-balduran-giantslayer-legendary-greatsword-ansur-guardian-bg3-lore/

Likely promised greater authority and parasitic powers, large numbers of drow have turned their backs on Lolth in favor of an Illithid future.

Source: https://screenrant.com/baldurs-gate-3-race-most-hate-why-drow/