Ali Abunimah, of Electronic Intifada, made the same claim.
This is the level of discourse that the anti-Israel crowd uses. They know it is garbage but they always try to find the most ridiculous connections between anything Israel-related and any mass murderer or reprehensible human being in a pathetic attempt to discredit Zionists. (In one example they tried to link me to mass murderer Anders Breivik by falsely claiming that I praised his manifesto in an article where I called him "evil" and a "psychopath.")
I tweeted how ridiculous this logic is after Max Blumenthal did the same thing:
Quebec massacre suspect "Liked" Sprite on his Facebook page, proving that Sprite drinkers are terrorists according to @MaxBlumenthal— ElderOfZiyon (@elderofziyon) January 31, 2017
Joking aside, the neo-Nazi ties to these individuals and sites are far deeper than the supposed Zionist links of the neo-Nazis. Hundreds of quotes linking them are far more significant than a Facebook "like."
EI and Mondoweiss truly are the research arm for neo-Nazis. And that is beyond dispute.
So every time they claim that some far right murderer and terrorist is linked to Zionists, point out that they are much more "guilty" of this linkage than Zionists are - by their own methodology. Feel free to use the image I created. Let's see how much they like taking their own medicine.