Way to take things out of context. You should understand your sources better. So let me illustrate how this is incorrect (using your own link):
"Sippenhaft or
Sippenhaftung (German:
[ˈzɪpənˌhaft(ʊŋ)],
kin liability[1]) is a German term referring to the idea that a family can share the responsibility for a crime or act committed by one of its members;
[2] that is, it is a form of
collective punishment because of family association."
No one is talking about punishment. We're talking about taking symbols of oppression, genocide, murder, kidnapping, and disenfranchisement down.
If my father was a famous serial kidnapper/murderer, I wouldn't walk around wearing a t-shirt with his picture on it, let alone in the town where he committed his crimes, or in the presence of the family of his victims.
I would be ASHAMED of it.
In the US, this is not the case. People in the US argue
in favor of displaying such symbols, which is what ANYTHING representing the Confederacy is to ALL Non-White Americans. The children of those who used and put up these symbols are arguing against taking them down. So if you defend the symbol, you defend the ideology. As such, it's no longer a matter of "guilt by association."
If you defend this today, you are guilty
today.