Jews mainly. They love to push 'diversity' in all forms of media.
This happens in all Western nations, but is most prevalent in the USA where they hold much power. This type of degeneracy always starts in the US, and then gets exported to all over the Western world.
It's easy for me to witness this, as here in Canada we can get both Canadian and US television programming, TV commercials, etc. US programming is Negrefied to the absolute max, to the point where I cannot watch it. You'd think Negros make up 90% of the US population just by watching their programming...