How does that make him a tool?
Wouldn't be the first time a manager gives up in Germany due to internal politics at the club. Klinsmann is in a position where he doesn't have to take any of that stuff so..
Not that I know what happened here, but certainly looks like that was his interpretation of the situation at least.
This is way bigger than "another manager stepping down".
Klinsmann was brought in by Lars Windhorst, who holds 49.9% of Hertha. He spent 70M Euros this winter on players and then steps down because he doesn't "feel loyality!.
German wiki, because the English version is not up-to-date
Hertha BSC – Wikipedia
English wiki on Lars Windhorst
Lars Windhorst - Wikipedia
I knew from the start the Hertha/Windhorst/Klinsmann combination is BS and will bite Hertha in the end.
Klinsmann, by the way. still is Windhorst's man in the supervisory board.