But totalitarian dictatorships are not a "heresy" on biology...
True. I didn't intend for the analogy to be taken that far...only trying to imply that ideas aren't responsible for the consequences to which they are applied.
Even if Hitler did base his entire strategy for conquest off of Origin of the Species and the Descent of Man, it wouldn't imply those works are factually incorrect, any more than the theory of gravitation would be factually incorrect because some jerk pushed his grandmother down a stairwell.
Try reading Richard Rhodes' The Making of the Atomic Bomb.
By the end, he came across as saying (at least to me) that since nukes could be used to stop communism, nukes were a bad idea ;-)
Cheers!