The rest of Nato won't do shit if the US beefs with Turkey. Saudi arabia won't do shit. Pakistan won't do dick.
But you are right that Turkey is no pushover, and they have their own leverage with the straits to the black sea there, which is the only reason they were brought into Nato in the first place I strongly suspect.
The US is stronger but we have such bad leadership at all levels, attacking Turkey is unthinkable, but so was attackng Iran so go figure.