Ulrich died in battle as a soldier of the Wehrmacht, Dieter became a physician and emigrated to the USA.

Although Bergmann joined the National Socialist German Workers Party in 1930, he published in 1932 a book about the dangers and the harmfulness of patriarchy that ran contrary to the leading Nazi ideology ("Erkenntnisgeist und Muttergeist.

After Hitler had become German Chancellor in 1933, Bergmann nevertheless hoped that the new regime would bring a cultural revolution, especially in the area of religion and philosophy.

Bergmann was strongly opposed to both Christianity and Judaism and propagated a new kind of religiosity ("Deutschreligion") based on his own philosophy and the pre-Christian spiritual roots of the German people.

In the years of World War II, Bergmann became alienated from the Hitler regime and was excluded from the NSDAP in 1943.