I don't quite understand what you meant with this
I believe that it wouldn' t affect the home page but the page videos only if they had conflict jquerry.
and I still see the second call of jQuery library on your head section like I've told above that could be the cause. Have you find which extension (module or plugin) that still load jQuery library (it's option is selected) ? what if you de-activate that first just to confirm if that's the issue?