Well, living in Israel, maybe he’s not aware of it. He has however, no excuse for not being aware of this:

Arabs Who Sold Home to Hebron Jews Arrested, Face Death Penalty

In the story, both the PA and Jordan discriminate against Jews.

I understand that a certain amount of hypocrisy is built into life and politics, but there must be some rational limits. Given that Israel in toto, is a tiny speck of land (the size of Wales) amid a huge sea of Arab nations with Jew-hating propensities, the problem Avnery addresses with such hand-wringing, is trivial. Moreover, the external situation provides a distinct justification for the JNF.