I mean if you're a company of this size and you've never heard of Yom Kippur, especially with the history Germany has had, that's definitely on you and part of this criticism.
I think for most people the primary source of knowledge about jewish culture nowadays are hollywood-movies and TV-Series like "The Nanny", not the actual people themselves.
The implication that it scheduling a business event on YK is a sign that one is antisemitic is a smear, straight up.
Especially with the history Germany has had
Enough lecturing, please.
Not least because it falls on a different date every year for anybody using a secular calendar..
He can't accept it.
Hannuka is not a German holiday. It is not a Christian holiday. It is a holiday from another country and culture.
Also, "The Jew that raised concerns about the German Linux company discriminating against Jews? Punished."
Anyone would be punished for questioning the companies decisions on multiple occasions. It has nothing with him being a Jew or with discrimination. It's what happens when employees don't know their place in the corporate hierarchy.
And in other places, parts of what it does provide are dodgy and misleading.