Afaik, these organizations barely bring in £50m collectively. For context, FIDF, the largest non-governmental American donor to the Israeli military, has gift £1.5bn+ in the past decade (£500m+ in the last 3 years).
In 2009 the US sentenced the 5 leaders of the largest provider of humanitarian aid, The Holy Land Foundation, to 16 to 65 years in prison. The 2 guys sentenced to 65 years in prison are still in jail.