Because half the plot of the books are Harry being suspicious of Snape based on basically just looks and a gut feeling at first and then hating him progressively as the books go on.
You can picture it in your mind “Oh Snape is very sketchy, he looks different then all the other professors. I know he is a bad person… I am going to prove it” with the visual background that he is like the only black professor and just one of a few black wizards shown.
I believe you, but how so? I’ve not read the books.
Because half the plot of the books are Harry being suspicious of Snape based on basically just looks and a gut feeling at first and then hating him progressively as the books go on.
You can picture it in your mind “Oh Snape is very sketchy, he looks different then all the other professors. I know he is a bad person… I am going to prove it” with the visual background that he is like the only black professor and just one of a few black wizards shown.