This is the exact same argument that people we're using to argue that we had to "stick with Biden" as the candidate. And it was so completely and wildly wrong, it almost cost Democrats the entire game before the clock actually started. A bunch of hand-wringing and what-ifs'. If you want to make those arguments, thats fine. Go find the data and show me there is a political cost to a pivot, because I've provided data to say there isn't, and in-fact, not pivoting is costing her the election. You don't get to use speculation or uncertainty as a form of evidence.
The evidence is on my side, not yours. If you want to support your argument, go find any kind of evidence you can, work it up, and give us an evidence backed argument to support that position.
Until then the conclusion is that Harris is leaving voters on the table with her position on Israel Gaza, because thats what the data we have says.