One way to summarize Buddhism is harmony of compassion and wisdom.
In Tibetan Buddhism, the position of Dalai Lama has symbolized compassion as the emanation of Avalokiteshvara, the Bodhisattva of Compassion. This has been the way for 500+ years. (A bodhisattva is anyone who, motivated by great compassion, has generated bodhicitta, which is a spontaneous wish to attain buddhahood for the benefit of all sentient beings.)
It is said that the Buddha Sakyamuni spoke of his coming as an emanation of the Bodhisattva Manjushri in the short verse from the Root Tantra of Manjushri. Tsongkhapa (1357–1419) began New Kadampa Buddhism in Tibet about 600 years ago. As an emanation of Manjushri, Tsongkhapa is said have been of "one mind" with Atiśa (the founder of Kadampa Buddhism about 1,000 years ago in Tibet), received the Kadam lineages and studied the major Sarma tantras under Sakya and Kagyu masters. He also studied with a Nyingma teacher, the siddha Lek gyi Dorjé, and the abbot of Shalu Monastery, Chö kyi Pel and his main Dzogchen master was Drupchen Lekyi Dorje, also known as Namkha Gyaltsen.
Last week at its 2015 Fall Festival in France, NKT stated that Kelsang Gyatso is the living Tsongkhapa in our world and the unsurpassed enlightened being. On NKT's main web site, NKT claims that "Je Tsongkhapa is at once an emanation of Avalokiteshvara (the embodiment of all Buddhas’ compassion), Manjushri (the embodiment of all Buddhas’ wisdom), and Vajrapani (the embodiment of all Buddhas’ power)."
With this self-defined pedigree with which no one outside NKT agrees, no wonder Kelsang Gyatso has dedicated his life to criticizing the Dalai Lama, directing protest rallies around the world against the Dalai Lama and approving nick names for the Dalai Lama like Nazi, Marxist, dictator, murderer, hypocrite, human rights abuser, traitor, evil, Muslim, cruel, pig, liar, false Dalai Lama, spiritual con man, one of biggest scams of the century, corrupt politician and CIA agent.
NKT believes that Kelsang Gyatso is infinitely superior to the Dalai Lama, once guru to Kelsang Gyatso. Thus, NKT sees its 25 year campaign against the Dalai Lama and his quest for harmony a worthy mission for their very own Buddha, Kelsang Gyatso.