For those not speaking german:
The Headline means:
Being honest means admitting: We have imported antisemitism
The rest of the post is about how immigration from muslim countries and "radical-islam" are to blame for anti-semitism in the country.
This is supposed to be most leftwing party in this cursed country.
:germany-cool: :agony-acid:
Here's a german podcast talking about how horrible germany is with israel.
Maybe they're over-selling it with the halved suffering but sharing with sympathetic people helps you maintain your sanity and moral compass when you're otherwise alone in an ocean of justification for and outright denial of your suffering.
It's a german saying.