As I've mentioned before, SOS Rasisme in Norway is threatening to press charges of defamation against Demokratene and anyone else who accuses the organization of being antisemitic. In correspondence with me, the organization has said that it feels it must defend itself vigorously against such charges.
It is indeed understandable that an organization founded to combat racism and bigotry must resist such allegations. And by all accounts, the leaders of SOS Rasisme are sincerely outraged by the criticism they've been getting.
I'd predict that SOS Rasisme will get more controversy than they bargained for if they press charges.
There are several reasons why, keeping in mind that I am not a lawyer: