I have thus searched from when Wilders started to complain about "witchhunt", "smear campain".
It started between between 2010 and 2012
https://www.gatestoneinstitute.org/3306/geert-wilders-smear
http://www.jewishideasdaily.com/4825/features/lambs-to-the-slaughter/
( the comments add various opinions on the Wilders Kortenoeven feuding)
This was from SOME Deutsh Jews. Specifically, his smear campain was started by
Kortenoeven who manipulated other Jews people to damage Wilder. Basically,
Kortenoeven had a falling with Wilder, and Kortenoeven worked hard at creating
some serious smaering against Wilder, and things took a life of its own.
Had those Kortenoeven talked to been
real Catholic , Kortenoeven might have started to
confess that he had may be a personal vendetta ( personal jealousy, or Wilder did not want to be
his puppet etc) and I would not be astonished if Kortenoeven actually got himself manipulated to start his vendetta campain. Many Jewish people just let themselves be manipulated by other Jews or anybody who says "this person is antisemitic" or "thsi person is a danger to Jews" , instead of making it hard for SOME jewish people to damage people "just because".
Wilder was also an idiot here, as he does not seem to know that many Maroccans
are actually Jewish. So when he called for ALL Moroccans to be expelled, it did not help his case.
To fully unravel this vendetta against Wilder, Kortenoeven would have to fully and totally make real confessions, and those around him as well. From then all the people he went directly to manipulate in his smearing campain would also have to fully confess, so as to understand how the lie evolved, what emotions got used and manipulated. Only these people would then take the steps to also get all the
people down the line to confess. SOME Jewish people really need to protect themselves from being used by professional manipulators.