discrimination based on the grounds of race, or physical abliities or disabilities is actually quite illegal
No where in any law system does it say racism is illegal, discrimination is illegal.
The internet isn't applied to by any laws of any government, it can't possibly be done so. That would require a world government, which could be dangerous. Just remember, on the internet, there are no laws. You can't be arrested for being on the internet, but for what you do on the internet. Meaning, if you see a website with horseresearch, you can look at. I mean, it's legal in certain countries. But if you post a website in the US with horseresearch, then the government has rights to call it bestiality and crack down on you.