From 1964 to 1975 the United States conducted house to house searches in Vietnam, leveled large portions of the land with carpet bombing, poisoned its people and forests with Napalm and Agent Orange, and committed war crimes there. On May 4, 1970 at Kent State the National Guard killed four students.
In Iraq in 2003 the United States destroyed a corrupt, terrible, but functioning state. In the process, during the 2003-2005 time period alone, we may have been responsible for 24,000 civilian deaths. Overall, the toll of the Iraq war and its aftermath is 193,000 violent deaths to date.
Through it all, we had political space in the United States to protest, to try and influence policy. Not enough were engaged, and we were engaged too late, and not enough change resulted. But there was opportunity to say "Not in our name."
For now, Israel still affords political space for people to take a stand. As long as that's true, it's possible to take the long view.
With sufficient engagement by dedicated individuals the arc of history can bend towards justice in time. Here is a story of one brave youth sacrificing to say "not in my name," sacrificing his freedom for a vision of justice.