When it comes to homicidal traditions, America is still light years behind Germany.
Proud German-American here, but you're absolutely right, Germany has no standing to lecture anyone on "homicidal traditions".
And I would even extend that to the rest of Europe. It's not only the Holocaust, those two World Wars (the first one started for a raft of really stupid reasons) count as well.
True.
You’d think the author would have known better.