Hi Harold, thanks for the feedback.
One could say that Dorje Shugden is already a yidam, and as such appears under the aspect of Manjushri. As much as one could say that Manjushri is already a supramundane protector, and as such appears under the aspect of Dorje Shugden.
In the same way, one could say that Manjushri is already a guru, and as such appears under the aspect of Lama Tsongkhapa and our personal gurus; and that such gurus are already buddhas, and as such appear under the aspect of Manjushri.
Maybe your urge to see Dorje Shugden cultivated as a yidam betrays a strongly dualistic resistance to see Dorje Shugden as identical to yidam Manjushri, which defeats the whole meaning of seeing Dorje Shugden as a buddha: Buddha Manjushri.
And, by the way, the proof of this statement, and of your inner, strongly dualistic resistance to see Dorje Shugden as a buddha, and specifically as Buddha Manjushri, is the very title you gave to this thread: “Proof, Dorje Shugden is not an "Enlightened Being”.