I don’t think there are any Israelis living in real poverty. Certainly no more impoverished than people here. They do have a fair number of refugees from other places but I’m guessing they’re well cared for.
That doesn’t mean that there aren’t unscrupulous fundraisers using an issue to make money for themselves.
I live in a town that gets many visitors, mostly from Israel, coming to collect for themselves or family members in dire straits. There is a local office that they must visit to receive a certification that their case has been checked out and verified. Each certification specifies the nature of the hardship and must be presented when a solicitation is made. I’ve met literally hundreds, if not thousands of such people over the last few years, so I can tell you there are a lot of people in extremely difficult situations financially.
I don’t know about the charity that’s under discussion in this thread, but I can tell you there’s plenty of poverty in Israel.