noun \Ëˆper-É™-dÄ“, Ëˆpa-rÉ™-\
Definition of PARODY
: a literary or musical work in which the style of an author or work is closely imitated for comic effect or in ridicule
: a feeble or ridiculous imitation
You've used an excerpt from a Hawking documentary, as well as excerpts from the Angry Birds game.
It isn't offensive because he's in a wheel chair.
You describe your video as being a parody and say "This clip is intended as a parody therefore should be treated likewise." According to most definitions of parody, it is for comic effect or ridicule.
So, what part of your video are we supposed to treat as comic effect and ridicule?