Why would I castrate a dog?
I'm pretty fond of my balls, my guess is he would feel the same way.
Docking is stupid and cruel and also illegal here.
The original German shepherd dog as developed by Max Von Stephanitz had a recessive white gene that would pop up once and again.
Ol' Max didn't care about colour, he cared about working abilities ( He would be turning in his grave if he saw what the breed he developed has been turned into)
Enter the Nazis. They stuck their fingers in everything back then, even dog breeding,
For some reason Göring ( I belive, this is from memory, might have been Goebbels) decided that the white shepherds weren't true Aryan dogs ( You'd have thought it would be the other way round, right?) so they were excluded from the breed.
They were still bred in the US and Canada and after WW2 they made their way back to Europe.
In some countries, like Denmark, they still can't be called GSDs so the name Berger Blanc Suisse is used.
They haven't been inbred like the GSD, so don't have all the problems like hip dysplacia, bad elbows and sloping back that those suffer from.