Maybe
You're wrong, no?
I wouldn't say he is our best midfielder, Ceballos contributed much more since the restart both in defending and organizing our game. Mkhi and Özil, although they're finished, are both much better players than Xhaka.Xhaka might very well be our best midfielder, but this is the worst midfield arsenal has fielded in years yet Xhaka apologists claim it as some sort of evidence of his quality.
That leaves us with Xhaka being compared to a group of players that don't even play that often: Elneny, Douzi, AMN, Torreira and Willock.
Xhaka currently can't even outperform Ceballos and some people would want to rebuild our midfield around him. That's madness