Orthodox Jews are a small minority of the global Jewish population, particularly outside of Israel. While Orthodox Jews do demonstrate that there is apparently nothing inherent about the Jews which motivates them to be liberal, this doesn't change the fact that Reform Judaism is dominant and that Reform Jews are overwhelmingly liberal. You live in Denmark, which has an infinitesimal Jewish population. Here in America we have as many Jews as Israel. They have voted over 70% for the Democratic Party for a century, and they are consistently the most liberal group according to GSS data. I have not seen anything in other Western societies to demonstrate that our Jews are unique in that sense.
Don't even get me started on that. There's nothing I hate more then seeing Leftist Jews march with Arabs in support for the PLO or w/e (this happened in the 80s). I never see Arabs marching with Israelis in support for Kach or another far-Right Israeli organization.
And we don't call them Reform Jews, Dave. We call them Deform Jews, get what I'm saying?