Just because the mythology of northern Europe got appropriated by Nazis doesn't mean an admirer of those stories should have prejudice against Israel. I believe Tolkien stated in his letters, perhaps, that the religious ceremonies of the Numenoreans were probably very similar to Hebrew ceremonies.
And even if Gollum (who, whatever the columnist suggests, is not the 'anti-hero') was described in some way that brings anti-Jewish stereotypes to your mind, which he isn't, Gollum was originally a creature a lot like hobbits. I know Tolkien's accused of racism, imperialism, and who knows what else but I've never heard anyone dare accuse him of anti-Semitism. Actually I believe he refused to provide "proof of his Aryan-ness" to German publishers and so could not get "The Hobbit" published in prewar Germany.
Do you have the text of the letter he sent to the German publisher asking if he was "Aryan"?
I thought I had saved it, but can't find it on my hard drive, and since "The Hobbit Hole" threads are something like 100,000 posts each I wouldn't know where to start to look.