Thats not toxic masculinity friend. She's just racist lol.
I'm not sure it's racism - though DnD does have a tendency to ascribe a culture to an entire race. But what she brags about is more along the lines of ethnocentrism - to which we would need to have a world where there are multiple cultures for Githyanki to determine if it is couched racism or not. Shadowheart is definitely racist as she uses the slur "flatnose" to refer to githyanki, and Lae-zel shows similar racism in referring to Tieflings as Teeth-lings, but her overall personality strikes me as being focused upon her belief in the superiority of her culture due to her queen - and taught that way to her for control reasons - rather than her belief that her genes make her superior. She berates player Githyanki for not having the same understanding of how everything works - though it is possible her crèche taught her lies (rather than player githyanki not being aware of Githyanki culture). She definitely dominates people, but we see other Githyanki dominate others like that. It comes off as if Githyanki culture, being so focused on martial endeavors, is full of toxic masculinity.
