>>>third version of the same story from the anti-zionist POV. Seems like everyone agrees on the words Chofetz Chaim said, but interprets them somewhat differently.
All three versions of the story are quoting the same person. Yet anyone who looks inside to see what he actually wrote can see they are all inaccurate. See the actual Kitzur Toldos Chayav written by R’ Leib Poupko himself. He did say similar things but not nearly as dramatic or as strongly as being claimed by the anti-Zionists. No he did not burst out crying about hearing people celebrating the Balfour Declaration. In fact he celebrated it himself! He did express his worry that the secularists would ruin things
The Chofetz Chaim on the Torah, Parshas Bo is probably the most accurate depiction of what the CC said and felt about the issue. But according to his son (The R’ Leib quoted here) the CC was actually uncertain about publishing his one and only anti Zionist letter which opposed the claim Zionists then made (they no longer do) that by living in EY and speaking you can be a good Jew without keeping Torah. He wrote it and was still weighing the possible unintended consequences publishing such a letter could have, when the person in charge of his correspondence sent it to be published without his explicit instructions that they do so.