Dear Jasper, I disagree: the American general public is not pro-Israeli but irrelevant, and it is so for the exact reason you note. That public is, generally speaking, ignorant and therefore not interested one way or another. What matters are the American Jews and their relationship with American politicians.
Supreme Court rejects plea for freeze on expansion of asylum seekers' detention (Haaretz)
from the article: Netanyahu's rhetoric over policy is jeopardizing Israel