The whole notion of Drukpas being “black magicians” is very far from the truth and mostly seems to be coming from the highly doubtable Theosophical sources, mostly from Helena Blavatsky. There is really no historical proof for any association of Hitler with Drukpas or even his familiarity with them - sometimes it is just easy to blame someone else for leading him astray - ranging from Drukpas to Enochian sorcerers to Russian occultists.
Drukpas are a lineage that traces all the way back to Vajradhara and they follow the teachings of Mahamudra. Their primary practice is Guruyoga and their practice is no longer “black” than any other sects of Tibetan Buddhism. They also have sexual practices called Karmamudra, also used selectively by other lineages of Tantric Buddhism - but these are not really for any “magical” purposes unlike say sometimes in Hindu Aghora or Kaula sects. One of my teachers, Drukpa Yongdzin Rinpoche, is a truly enlightened soul and is a treasure-house of Mahamudra practices.
Also, Vajrayana practices work uniquely due to three things:
- The accuracy of the practice itself - needless to say, the right chant, pronunciation, etc. are important
- The view that accompanies the practice - this is the reason that all esoteric practices are taught only after a specific mindset is established and a definitive metaphysical worldview is attained. The very same practice can produce two different results when practiced say within the Buddhist context vs the Hindu context as the “view” is not the same.
- The lineage - in this day and age, our level of knowledge is low, patience is lower and mistakes are abundant. These practices work, in spite of the shortcomings, because the lineage attunement makes up for it. The lineage of teachers in various dimensions is themselves like a morphic field that contains the effort and realizations of the entire gamut of accomplished teachers and attunement (initiation) provides access to this field of consciousness. This is really the secret sauce.
Also, the practices are protected by Dharmapalas aka Guardians. They cannot be willy nilly used as one of the key goals of Buddhism is non-violence. When I was a teenager, I once invoked a wrathful guardian to take care of a bully and the same night, the guardian chided me as my intention was to hurt the bully, which was totally unnecessary (sort of like using a nuclear weapon on a rogue puppy).
A while ago, Dream was experimenting with portals to some higher dimensions accessed by Buddhist lineages and it was fascinating. The amount of scrutiny before I was let into one such dimension was nothing like I had experienced in any other astral dimension. The checks and balances are in place all right!
Then there is politics. Some Kagyu monks on the payroll of the Chinese government occupied monasteries of Drukpas, created a lineage called “Drukpa Kagyu” and spread rumors about the Drukpas. Drukpas have not been popular like the other sects due to the intermingling of Drukpas with other sects since the Chinese campaign against them.