zlacker

If you’re referring to the Nazi movement in general, probably the point where they openly campaign against the concept of liberal democracy or use street violence (roughing up opposing groups, smashing windows, attacking/commandeering government facilities) as a means of social protest. Those are all pretty big warning signs that were present in the Nazis long before they seized power let alone built concentration camps.

>>philwe+(OP)
No I'm referring to the German law enforcement agency that eventually ran the death camps. At what point in their journey toward the gas chambers do you say enough is enough. I would suggest that separating families and putting children in cages is far enough.

Trump repeatedly asked his followers to rough up protestors 4 years ago.

>>empath+Ed
> No I'm referring to the German law enforcement agency that eventually ran the death camps.

You placed your question in the 1920’s. The SS was founded as a bodyguard unit for NSDAP leaders in 1925 and remained purely an organ of the party until 1933 when Hitler became chancellor and the Reichstag passed the Enabling Acts. Up to that point, most of the political violence was carried out by the SA, which was likewise an organ of the NSDAP rather than the government. After the Enabling Acts, the Nazi government deliberately blurred the lines between the German government and the NSDAP, but that is well outside the timeframe you suggested.

To answer your question, I would probably not do business with any part of NSDAP starting in the 1920’s on account of their history of street violence and their platform of abolishing democracy. I would similarly refrain from doing business with the German government as soon as the Reichstag abolished democracy and outlawed every political party other than NSDAP. This would extend to the SS although the SS itself was not especially involved in any of these events.

As you can see, this isn’t a particularly relevant analogy.