Why did someone photoshop a white arm over his black dildo?

That's from his vast collection of holocaust memorabilia. It's a prosthetic arm from an Auschwitz victim. Look how he's posing with it... like it's a trophy for an achievement.

http://fcit.coedu.usf.edu/holocaust/people/photos/devices.htm

It's him demonstrating what he believes to be the perfect skin color.