"Why are people so willing to accept the accusations against Ed Murray but not willing to accept the accusations against Donald Trump?"

Have you heard of "FOX 'news'?...lol
I'm pretty sure the only people left is Shep and the rest are women. I'm beginning to wonder if he's gay. Drumpf swims in that culture. 

"Ed Murray faced 5 accusations, Donald Trump was accused at least 21 times of sexual assault"

Drumpf is at least 4-5 times more famous than Ed. Therefore Drumpf actually has to assault a handful of women to catch up to Ed, who is less famous and not worthy says the diehard Drumpf voter. It's simple math. "Why are we not talking about Hillary?" "Why are we not talking about Bill?" says the altrightpubs. 

Something like that...

OH!...and Russia is a witch hunt, why are we not focussing on Obamas birth certificate?

There's an answer to your question somewhere in there.