There is nothing remarkable about what Trump is saying about (and to) liberal American jews. It is the same thing that Conservative jews (Prager, Shapiro, Levin, etc.) have been saying for years to their fellow jews. That is, if you believe that Israel requires strong American support to thrive, then you should be voting for the party that provides that support. And there is no real question which party that is.
Whether you are a religious jew or a Zionist, or any other of the many ways of being a jew in America, you should care deeply about the safety and viability of Israel, which sits amidst hundreds of millions of mainly Arabs who disdain its very existence.
Trump's message to such people: Wake (the fuck) up!
What is remarkable about that?