I appreciate you for saying that. I don't think you intended it that way. Nor do I think you intend to create a kind of litmus test for who is qualified to be spiritual.
I personally don't see why the "Children of Yisra'el", as you said, should have any 'spiritual gifts' that the goyim do not have. First of all, when were the children of Yisra'el righteous compared with the goyim? Self-righteous, maybe. But if you are judging by biblical standard, at what time were the Children of Yisra'el, righteous under the law? Goyim cannot be judged except according to their knowledge.
So that question I will pose to you.
Yeshua, if you believe in him, also said that he had other sheep not of this fold (Yisra'el) so would they not all have the same capacity for spiritual gifts?
I say this because sure I've had what you could call spiritual experiences and dreams and such but they were a product of what was programmed in. I conditioned my mind to project certain things and therefore I experienced that. I've had night terrors even when I thought I a demon was trying to kill me. However, I was wrong even though at the time that's what I 'saw'. And the evidence is that now that I don't believe I have never since had that experience so I say how much of these experiences are a product of the program we feed our minds?
Some 'gifts' are merely talents that different people pour their strength and energy into and we give thanks to Jah for those and every other blessing. But how does one know such a thing comes from an external source? Is the external source required? Or could these same gifts be inspired by other sources and produce the same result? And maybe if that person is Muslim we simply don't ask them, or if they're atheist we simply don't ask them and therefore subject ourselves to confirmation bias.
And on the other hand, the children of Yisra'el, themselves, followed different gods, witches, warlocks, and other mystics; whoever they simply believed to be credible based on their superstitions. The Witch of Endor for example. Was that real? Did she have real power? If so, where did her power come from? Or was it an illusion?