That’s not entirely true, Die Linke has accepted the BSW part and their leader Sarah Wagenknecht for years on end. They knew what she was all about and did not care. If it wasn’t for the BSW part leaving on their own, they would still accept them for the votes.

Furthermore, Die Linke still has no interest in dealing with their inglorious past, e.g. they still hail the last SED leader Gregor Gysi.