If you were to add up every single youtube view in existence, multiply that by 46.5 Septendecillion's, and then add the weight of the Milky Way that would give you the number of Sakuras required to defeat Juubito.
It would not matter if there were 8 billion sakura, sakuras...sakuri their would be nothing she could do to juubito. A sage mode rasengan could not do anything so her fist could not touch him.