That's ridiculous. The uncommitted movement and pro-Palestinians in general were very clear that they were not voting for Harris because she refused to back away from Biden's genocidal and pro-Israel policies. I didn't vote for her (or anyone) either. I
was excited when Biden dropped out and she became the candidate because I thought she might make a change, but she explicitly stated that she would not, losing my vote. I'm not Arab or Muslim, I just don't want to support Israel and genocide. This is common among younger people (thankfully).
Also, Trump is obviously awful and extremely pro-Israel, but so was Biden. In fact, more Palestinians were killed under Biden. I do think the Democrats are starting to shift though, they simply cannot support Israel any more and hope to win elections.