Israel & Zionism, not Russia, have always been our costly enemy, never our "ally."
This nonsense that Russia (former Soviet Union) is somehow not a friend goes way back to 1967, when the USS Liberty was nearly sunk by Israel (with help from Lyndon Johnson). A Soviet navy vessel was the first offer of aid to Liberty, after the Johnson administration tried to hurry the sinking of it ... by Israel:
https://www.counterpunch.org/2003/10/24/israel-s-attack-on-the-liberty-revisited/
"A Soviet destroyer responded before the US Navy, even though a US submarine, on a covert mission, was apparently in the area and had monitored the attack. The Soviet ship reached the Liberty six hours before the USS Davis. The captain of the Soviet ship offered his aid, but the Liberty’s conning officer refused."