I can't speak for centrists, but I think his appeal is wonderfully written. Moore enunciates the danger of Trump returning to office while offering constructive criticism like few others can.
Why would you say that? There's nothing wrong with what he said. It's a bit stupid to be saying it right now with just days left in the election, but that's the only criticism. Harris is being very smart in not making any statements or strong moves on the matter right now. She is currently taking tons of Trump voters away who would return to Trump if she made some statement in support of Gaza and/or Muslims.
Moore is saying that Harris should change on genocide. To lemmy's centrists, that maps 1:1 with working for Putin or supporting Trump or both.
Harris is being very smart in not making any statements or strong moves on the matter right now.
She has aligned herself with Biden's policy regarding genocide. She has taken sides on this already. She has sided with Netanyahu. Hence what Moore said.