How would Khan have done against Golovkin and Spence?

I don't get the point of this thread; Amir Khan against Spence and GGG, the biggest punchers of their respective weight divisions ofc Khans getting knocked spark out. First of all Amir Khan does not belong at middleweight. For Khan right now I like the Garcia rematch (Garcia isn't high on confidence, but would definitely feel he can beat Khan) or Jessie Vargas (decent figher, beatable and also signed with Al Haymon.