Four things: Hamas could put a stop to this mess today by laying down their arms and releasing all the hostages.
There are enough Arab billionaires in the Middle East and any one of them could make up the difference in funding for UNRWA
And last— UNRWA is not clean in all of these mess, and the West is right to not fund them. It has been an issue for a long time, it did not just happened. UNRWA funds the schools that teach this brand of holy war against the infidels and salaries some the the Jihadis that inflicted this massacre on Israelis on Oct 7
UNRWA is part of a peace keeping Organization that should not imbed themselves with terrorists.