I cannot help if you take offense at plain language. As I noted, "Germans killed the Jews" is standard English usage that carries no further connotation than an acknowledged historical fact. The claim that I must say "Nazis killed the Jews" is as ridiculous as the simplistic conclusions you draw. In history, the situation of Jews in Germany has varied over time and is not invariant. I could as well have said that the increasing influence of Indian/Pakistani culture in the UK is ironic given that the British imposed racist system of colonization on India. I suppose you would object that it was the East India Company and not the British as a whole or that my observation of the irony was tantamount to saying that all English people want to reimpose colonial rule on India.

In response to your original complaint, I have made the further argument that the denial of history is a commonplace in Europe and I think a dangerous one.