I would say that Astarions standpoint make sense ...
Its all wrong, and twisted ... but i can see him come to such conclusions.
Same as having this really weird and kinda stupid reaction.
What bothers me so much more is that we have no way to answer him properly ... but that was talked about bzillion times allready.
I still dont understand why cant we change Race for our hirelings.
Lets us play Githyanki as racist as they trully are!
