Left over identifies with enemies of US?

I was struck by this letter in yesterday’s Irish Times (subs needed) by Irish Labour councillor John McManus, an unusual stance from anyone on the left in Ireland:

There is confusion, and some plain bad politics, being propagated by some on the Left on these important questions. As an active member of the Labour Party I hold a different view.

However murky, heartbreaking and confused the war and politics in the Middle East may be, the issue is the right of the state of Israel to exist within the pre-1967 borders. This right is denied to it by both Hizbullah and Hamas. The other issue is the growing hold of theocracy, fanaticism and fascism on many Islamic people. The question is where people of the left should stand on these matters.

Reminscent of the Euston Manifesto.