I don't see why you haven't started this project yet…. Not my cup of tea. I'm busy translating thousands of pdf files at the moment or I would be interested in digging around in that. Hint for you… Go look up the financial disclosures they all fill out. A lot of them LIE on those but it's a start and once the sheet is made it can be adjusted as new information becomes available. Go for it brother, GIT ER DONE!
https://www.pbs.org/newshour/politics/u-s-and-israel-officially-withdraw-from-unesco
This is and has been sauced for a really long time. Here's a semi official website posting about it. Maybe POTUS will mention it today sometime. Maybe not UN isn't very important in the grander scheme of things and I doubt POTUS really gives a damn about what they do or say.
Probably took a payoff