You know damn well that if he said something negative about gay people or Jewish people no one would be saying any of that nonsense. He would be universally condemned.
He said ignorant comments like how rich black people commit more crimes than poor white people. Anyone with a basic understanding of sociology would know that poor people commit more crimes regardless of race or ethnic background. There's nothing to respect there.
JonTron: "Wealthy Blacks Commit More Crime Than Poor Whites" - CraveOnline
His opinions and ignorance ARE a problem if you have a large audience of fans. If this was some random person working at Walmart then no one would care. This person has hundreds of Youtube videos, his own website, and a large fanbase. In his eyes, expressing his white supremacist views are more important than making money. If you express those views, you better be ready to deal with the consequences.
Especially when people go to entertainment to escape from problems in the world such as racism.