The basic statement here is:
"I would very much like to give responses or make statements that are related to or coming from the nature of my personal class, or the cultural background of my people, that do not come positively oozing with Someone Else's pre-designed personality."
This is NOT a hard request to fulfil; it's actually very straight forward and generally speaking it Should be the default way that such dialogues are designed. Larian took extra efforts to Not design them this way, and that detracts from the experience unless you just so happen to be playing a character that does accurately match the personality that Larian are mapping onto the class you picked for you.
