I shall disregard the supposed trap and willingly walk right into it ...
Actually, YES! Because ...
UNRWA, while it has a gazillion problems (again, not typically the ones Israel complains about), has 30k employees, 13k around thereof in Gaza and - out of all of these - 12 have been accused (again: by Israel, based on "interrogation", which, in Israel, often means "torture"). And they have been suspended! UNRWA is instrumental to delivering humanitarian aid in Gaza right now!
Meanwhile, the government of Israel is a far-right cabal, several of whose members have had their potentially relevant as "incitement to genocide" statements specifically called out. They - specifically Gallant - have explicitly stated their aim to starve out and thirst out Gaza. And tried to do so - had not their allies been a tad worried about the optics and forced them to downgrade from "no food, no water" to "too little food, too little water, for people to survive on". They have not been sanctioned. They wield an army of <1 million of active and reserve soldiers, and they are using it to flatten Gaza and make it uninhabitable.
Yes, we fucking should de-fund and sanction the genocidal apartheid regime! And we absolutely should at the very, very least be continuing to fund emergency aid to Gaza. Which, at present is UNRWA.