I'm redundantly repeating myself again for the umpteenth time, but this is a classic example of why an opt-out policy would be good for Wikipedia - there's no reason why someone who calls himself something as silly as "Chase Me Ladies, I'm the Cavalry" should be dealing with this, or should even be
allowed to deal with this, other than to ask this person, "do you want the article deleted, with no chance of it ever being restored while you're alive"? And if the person says "yes," that's it - clean break, end of discussion. Nobody loses, not really. Instead, we get incidents like this one, which only make Wikipedia look even more stupid than it actually is.
If Shamir says, "no, I don't want the article deleted," then they simply say, "sorry, but in that case your options are to let people smear you, or try to fix the article yourself, or find out who's smearing you and sue them, at least until such time as you can sue the Wikimedia Foundation for hosting the article."
What would Shamir's choice likely be? Does anyone know?
If he's at least partially sane (which does seem arguable), IMO he'd probably want it deleted. From what I gather, the only real purpose for this article is to further demonstrate that there are still people in the world who don't like Jews for reasons that are at best incoherent, and at worst, stupid and hateful - and that some of those people are in positions where they could conceivably influence others, assuming the word "others" means "a bunch of gullible idiots." But the article only makes him look
more influential, probably more than he actually is, and certainly more than he deserves to be.