No problem.
You 'reasoned' that Losty must be white because she said she'd never heard of the black guerilla family. Losty is indeed white. However, it's not necessarily the case that she was unfamiliar with this group merely because she is white, nor the fact of her being white precluding her from hearing of them; and indeed, the conversation indicates that this is so.
Thus, you were incorrect in your reasoning - which was in point of fact a huge non sequitur - you merely chanced to be accurate about the nature of Losty's racial heritage.
You 'reasoned' that Losty must be white because she said she'd never heard of the black guerilla family. Losty is indeed white. However, it's not necessarily the case that she was unfamiliar with this group merely because she is white, nor the fact of her being white precluding her from hearing of them; and indeed, the conversation indicates that this is so.
Thus, you were incorrect in your reasoning - which was in point of fact a huge non sequitur - you merely chanced to be accurate about the nature of Losty's racial heritage.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'