I think the us values the billion dollar arms contracts over preserving the quality of this investigation. It sucks because Biden can't even be pressured with voting because the otherside has a worse stance.
Who is going to let another country investigate their Military during an ongoing war? Isreal has to be the one to provide the reports its not that unexpected or out of the ordinary.
I dont think you are right that most people dont want to donate. All big fediverse instances are funded by users. Every user may not want to pay the few cents that it costs to host the instance for them but there are enough users that donate $10+ to cover hosting costs for the other users.