Her name is Evelyn Hecht-Galinski, and, while she isn't a published historian, her pedigree as child of Holocaust survivors is decidedly better than Finkelstein's: her father was Heinz Galinski, Germany's top Jew in the 1980s. Both Finkelstein and Hecht-Galinski put lie to the canard that Jews can't be antisemites. Apparently, Henryk Broder has decided to take her down, and we should all be rooting for him. (One of the myriad peculiarities of contemporary Germany is that only another Jew could afford to stand up to Hecht-Galinski the Jew).
Broder himself, another child of Holocaust survivors, is probably Germany's most formidable columnist and a fascinating person on his own right. He knows a thing or two about antisemitism, and in the 1980s he wrote a great book called Der Ewige Antisemit (The Eternal Antisemite), in which he devastatingly documented the extent to which already by then the Left had become a bastion of antisemitism, while pretending to hide behind mere criticism of Israel. It was quite an eye-opener, I remember.