WWJD?
I am Jewish so I am qualified to answer here.
Jews tend to be part of academia or other professions which tend to tilt towards liberal issues. It is not as though they do not care for Israel. On the contrary, Jews in the US tend to support Israel by sending money, buying bonds, planting trees, yadda yadda.... To many,(76%) this is enough. Most Jews in the US live in LA, NY, Miami and other heavily liberal areas.
We speak of a strong Israel. However, when you listen to liberals they want Israel around for one reason. So that they can go there for three weeks to see the country when they retire.
Most Americans that have already been to Israel see Israelis as egotistical, pushy, bossy people that cannot stand Americans. I lived there for a year and can attest to that. I have friends that are Israeli. I also met Israelis that would make the French look good as far as being rude and obnoxious.
I guess the way to look at it, Jews, as Americans vote liberal for the most part. Whether it is because of how we arrived here in the early 1900's or because of our environment, American Jews vote as their parents voted and grandparents voted.
My grandparents were neolibs. My parents were neolibs and until I learned for myself what is happening to this country, not to mention surviving a bomb blast in Jerusalem a few years back, I was a neolib.
My parents are now Conservative.