As for the HHDL being Gelug or not is irrelevant, the Gelug major monasteries do take him as their head. Secondly we can check the 18 volumes of Tsongkapa's teachings, there is no Shugden mentioned. When Tsongkapa was in retreat for 6 years in Olka, he relied on Kalarupa and he recommended the same for others who follow him. Don't listen to HHDL, but listen to Tsongkapa.[/color]
How could Shugden be mentioned in Lama Tsongkhapa writings when Dorje Shugden had not arose yet?
The matter at hand here is very simple: Is Dorje Shugden a spirit or is he a Buddha, thus suitable object of refuge?
So far, there are still not a single evidence that DS is a spirit, and yet many evidences that he is a Buddha and was already a Buddha before he arose as a Dharma protector.
I'll go further, to declare that Dorje Shugden is a spirit is the same as saying that Manjushri is a spirit.
It is just as absurd...
Si when an emanation of Chenrezig declares a ban on an emanation Manjushri, it can only be a play in motion.
Please, and with respect, contemplate on that Tenzin Gyatso.