They do. They also understand that there collaborators were Ukrainian nationalists (who were extremely anti-semitic and enthusiastically participated in pogroms) who are increasingly venerated in Ukraine. As an American, I'm able to compartmentalize this, and rationalize that Ukrainians are venerating people like Bandera for their anti-Russian partisanship, not for their anti-Jewish politics. But this is less of an option for Germans, who for very understandable reasons have a greater sensitivity to anti-Semitism than most nations.