Neither do I , maddyone, understand Davidhs point about the position in continental Europe
Incidentally Davidhs, my Jewish friends are not as you describe, low profile, with their names as the only clue. They are a mixed bag, just like my friends of Muslim, Hindu or Christian background.
As for weather they support a homeland in Israel, my experience is yes of course they do. Their ancestors originate from that region. One of my close friends is from a family who fled pogroms in Poland at the turn of the last century. They chose the first name they saw on an ironmongers in Portsmouth as their "English " name. It was in fact, an unusual German name, which they still carry and caused some upset during WW2. Every member of their extended family who remained in Krakow was murdered in Auschwitz and yes, they all support a homeland in Israel. Though they are rooted in England.