I find the desperation on tumblr to have a black Peter Parker incredibly racist.
Black Spiderman? Fine because Miles exists. Black Peter Parker? Racist.
When someone says they want a black Peter they are actively ignoring Miles. They are pretending that he doesn’t exist, that he doesn’t matter.
They are passing by a canonically black character to only focus on the white one. Now, it’s a different issue when there is the only one character (like the Human Torch since that’s a popular topic right now). But when the option exists and you act like that option doesn’t in order to focus all your time and energy to point at a white character, you’re sending one message:
Black characters only matter if they were originally white
And that’s fucking racist