> to say a story is bunk because it appears in RT as a
    > source demonstrates a wilful ignorance, or incredible
    > naiveté

I didn't. I said an argument that relies upon RT due to the story not being carried elswhere is "bunk".

    > All news sites carry a bias

But few are sanctioned by Ofcom for regularly broadcasting "materially misleading" content, called out by all manner of former employees for being propaganda machines, or widely derided by virtually every other serious media outlet. Attempting to cover that with a general statement of all media bias - having substantially misrepresented (or just not properly read) the comment you're replying to - "demonstrates a wilful ignorance, or incredible naiveté".