I'm wondering why you don't view them as the [valley of] "dry bones," but without (yet) the "breath" breathed into them... when they are still saying, "Our bones are DRIED, and OUR HOPE is lost: we are CUT OFF for our parts." Ezek37:11 (that is, before the "breath" is blown into them, as in v.8 ["but there was no breath in them"], v.10 ["and the breath came into them"], as well as v.5 ["I will cause breath to enter into you, and ye shall live"]... seemingly corresponding to v.14 ["and shall put my spirit in you, and ye shall live..."]).
IOW, they exist as a specific entity PRIOR TO the breath being breathed into them [and I do not believe THAT part occurs at His Second Coming to the earth point in time, which point will be TOO LATE.]
[I believe the passage about "the least of these My brethren" (Matt25:40,45) is speaking specifically about the BELIEVING remnant of Israel during that future time-period preceding Christ's RETURN to the earth]