Are you being fair? I'm not sure. You've constructed a narrative of who "foreign policy protestors" are (anti-Western, anti-colonial leftists) and then project it upon (nearly) all who oppose Israel in Palestine.
I'm speaking specifically about the "grab your signs and hit the streets" protesting. That's almost always only done when there's a perceived connection between one of the belligerents and a "Western power" in order to conform to a broader narrative.
I can enumerate several instances where people didn't seem to care about a particular foreign conflict, but it was only when a "western power" became involved when people wanted to hit the streets with their peace signs and seemingly take whatever side was opposite of the western power.
Iraq spent 3 decades going to battle with various neighbors
Iran did the same
Not much chatter on the streets, it wasn't until there was an opportunity (like Operation Dessert Storm) that people wanted to hit the streets and advocate for "peace in the middle east"
Vietnam was similar...
I don't recall seeing many protests or calls for peace when they were being occupied by (or in conflict with) Japan or Cambodia 10 years prior, but the moment the US got involved, suddenly a bunch of N. Vietnamese sympathizers in the US came out of the woodwork.
Kosovo and Libya followed that pattern as well.
A few sociologists and poli-sci authors have written about it.
Neta Crawford wrote how Western anti-imperialist and leftist movements often respond not to the crisis itself, but to the symbolism of U.S. or NATO involvement.
Jean Bricmont has written about how parts of the left reflexively oppose interventions not based on the actual nature of local crisis but because they see it as an opportunity to critique imperialism. He discusses how conflicts get ignored until the West intervenes — then become flashpoints for protest.
Christian Caryl has written several pieces about this phenomenon, specifically with regards to the Syrian conflict.
Hence the theme of my thread, does the "Reign in the influence of Israel" movement/narrative need some folks (like Tucker) who specifically aren't in that "reflexively oppose all things Western" crowd in order to make certain specifics of this conflict resonate with more people?