Comments and beliefs like that precipitate wars, bloodshed and slaughter of innocents. All people are equal. If you don't believe that, you cannot call yourself dharmic, nor align with any school of Vedanta, because
sarvam khalv idam brahma.
http://en.wikipedia.org/wiki/Brahman#cite_note-9
Now you can probably appreciate what I mean about how divided Hinduism is, how Hindus will actually tell people stuff like in the above quote and pass it off as Hindu belief. Such views, unfortunately are held by many Hindu nationalists, among whom "Mein Kampf" Hitelr's book is a bestseller and considered a classic.
I personally think we should exercise a zero-tolerance for beliefs like this and not just treat it like another viewpoint or perspective within Hinduism. We should and need to call people out who say things like this(or stuff like the Puranas were composed in 3000BCE, Krishna had 16,000 wives, homosexuality is forbidden and punishable, encourages bathing and drinking from Ganges; considers manusmriti authority; Hinduism as Indians only club or treating Indian Hindus as inherently more superior) Nationalism is not a Hindu perspective, Hinduism is based on the philosophy of
Vasudeva kutumbukum the whole world is one family.
Aryan race theories appeared in a time of Social Darwinism, when the Anglo-saxon race who had beaten the rest of the world to the scientific revolution, age of reason and industrial revolution giving it a massive scientific advantage over the rest of the world, allowing it to colonize other civilizations and in order to justify why the anglo-saxon race white supremist doctrines like the "white mans burden" were created and combined with genetics, the notion of superior white race was created. The term 'Aryan' was apt, because it was found by linguists and anthropologists studying the Vedas of the Hindus, that the Vedas belonged to a common Indo-European culture, thus somehow this culture spread all through Indo-Europe, and given the racist climate at the time in Western thought, this was explained as the white Aryan race.
White Aryan race is a myth of course and nobody in scholarship today takes it seriously - the only group that still draw from this myth are White supremist organizations like Stormfront. Aryan race theories in general are still popular with Hindu nationalists. Educated people do not believe in such theories.