It’s a sound theory and would make logical sense. It’s based on how we would hope people would react to such things and actually vote based on what they believe in. However, that’s a very small minority. In reality, most people don’t think that deeply about a candidate.
If anyone thought deeply about Trump, we wouldn’t be where we are now.
I wouldn’t doubt Harris was supporting Israel in exchange for money or returned favors. Trump let Israel do whatever they want. Israel has their hand up every US politician’s ass for decades. Israel certainly won either way.