My take is that the US would have an aggressive foreign policy with or without Israel.
But the Zionist lobby is making a bad situtation much worse.
Furthermore by fanning the flames of war, brutally repressing legitimate Palestinan national aspirartions, and treating them like animals who can be killed or made homeless at will the Israelis are endangering Jews everywhere IMHO.
“The things that will destroy us are: politics without principle; pleasure without conscience; wealth without work; knowledge without character; business without morality; science without humanity; and worship without sacrifice.” Mahatma Gandhi