Since the flood there has been amalgamation of man and beast, as may be seen in the almost endless varieties of species of animals, and in certain races of men. Spiritual Gifts, Vol. She was NOT speaking about cross-breeding between animals and humans. Ellen White was speaking about the genetic engineering of animals by man, and similarly cross-breeding between types of humans. Hitler tried the same kind of manipulation to try and produce a super Aryan race.
Today there is the same controversy over genetic engineering of plants, animals and men.
Man today is able by manipulation to produce species that were not created by God, and clone animals etc. The above shows a extreme racial prejudice to go with White's religious prejudices. Your question was based on a false assumption, but now you know what Ellen White really meant by her remarks, which were not racist at all. The Lord has given me a view of other worlds. Wings were given me, and an angel attended me from the city to a place that was bright and glorious.