Since 1996, a small vocal anti-Waldorf group in California, "PLANS Inc.", coached by its secretary, Mr. Dan Dugan, repeatedly attempts to connect Rudolf Steiner, the main founder of anthroposophy, which is the philosophical basis of Waldorf education, with Adolf Hitler and Nazism.

For an actual comparison between them, see below.
For more on the myths cultivated by this group, see here

Vol II: The National Socialist Movement
Chapter 2: The state

»Therefore, when we speak of the high mission of the State we must not forget that the high mission belongs to the people and that the business of the State is to use its organizing powers for the purpose of furnishing the necessary conditions which allow this people freely to unfold its creative faculties. And if we ask what kind of statal institution we Germans need, we must first have a clear notion as to the people which that State must embrace and what purpose it must serve. 
    Unfortunately the German national being is not based on a uniform racial type. The process of welding the original elements together has not gone so far as to warrant us in saying that a new race has emerged. On the contrary, the poison which has invaded the national body, especially since the Thirty Years' War, has destroyed the uniform constitution not only of our blood but also of our national soul. The open frontiers of our native country, the association with non-German foreign elements in the territories that lie all along those frontiers, and especially the strong influx of foreign blood into the interior of the Reich itself, has prevented any complete assimilation of those various elements, because the influx has continued steadily. 
...
... the Germans lack that strong herd instinct which arises from unity of blood.
...
If in its historical development the German people had possessed the unity of herd instinct by which other peoples have so much benefited, then the German Reich would probably be mistress of the globe today.
...
The fact that our people did not have a national being based on a unity of blood has been the source of untold misery for us. ...

He who talks of the German people as having a mission to fulfill on this earth must know that this cannot be fulfilled except by the building up of a State whose highest purpose is to preserve and promote those nobler elements of our race and of the whole of mankind which have remained unimpaired. 

Thus for the first time a high inner purpose is accredited to the State
...
As a State the German Reich shall include all Germans. Its task is not only to gather in and foster the most valuable sections of our people but to lead them slowly and surely to a dominant position in the world.

[GA 54, 12.10.1905]

»That is the great achievement for our soul, that we as a consequence of the spiritual development learn to understand the common soul of humankind, the unity of all of humanity, that we do not get as an unconscious gift, but that we must struggle consciously to come to [...]

That is expressed in our first principle: to found a brotherhood encompassing the whole earth, without regard to race, gender, color, and so on. That is the recognition of the soul that is common to all mankind. Even into the instincts the purification must take place that makes it evident to all people, that the same soul lives in their brothers (and sisters). In the physical we are separated, in the soul we are a unity as the ego of humanity. But only in the true, real life can we realize that and find our way into it. [...].«

[GA 54, 9.11.1905]

»We more and more approach the solution to this riddle and we can understand that we in the future will have to go through other epochs, that we will have to go other ways than the races have done. We must be clear about that the evolution of the soul and the races are different. [...] so we also understand the basic principle of founding the core of a general brotherhood without regard to race, color, social position and so on.«

Cosmogony
- Theosophy and the gospel of St. John

[GA 94, 2.11.1906]

»"The one who eats my bread walks on me with his feet" (Joh.. 13,18). Christ leads ... beyond the race to the whole humanity of the earth, to all peoples and races of the whole planet. Jesus Christ is the representative for that; he carries the whole of humanity in himself. ... Jesus Christ is the one who in an extract encompasses the consciousness all of humanity.«.

[GA 54, 1.2.1906]

»Man has spanned the whole earth with industry and trade that works without regard to nations and races. Machines produce the same products in Japan, Brazil and Europe. The same railways cross the earth everywhere without regard to race, nation and position. The differences in humanity have dissolved in our cultural body. The check that is issued here in Berlin can be cashed in Tokyo. Everything in our culture has developed in such a way that we can formulate the principle ...: We want to found a culture that spans the Earth without regard to race, gender, profession and denomination. That's the material culture, that under this motto has spanned the circle, the sphere of the Earth. This culture must get a soul. And to bring this cultural soul into it, ... that is the task of anthroposophy and our way of life (Lebensführung). We have a material culture and we need a spiritual culture with the same qualities ... People must be able to understand each other in their souls again.«

The spiritual background to the external world

[GA 177, 26.10.1917]

» ...Someone still of the 14th century, speaking of the ideal of races, of the ideal of nations, spoke out of the developing qualities of human development. 

But someone who nowadays speaks of the ideal of races and nations and belonging to a tribe, speaks of decaying impulses of humanity. And if he believes that these so-called ideals constitute progressive ideals, when speaking of them, he is saying something that is untrue. Because through nothing will humanity bring itself more into decay, than if the ideals of races, nations and blood were to continue. 

Nothing will be a greater hindrance for the further development of mankind than the conservation of the ideals held by earlier centuries [...] in declarations about the ideals based on nations. The true ideals for the future must be, not was is based on 'blood', but in the purely spiritual world.«