No. They are absolutely not allowed to stop food and aid into the combat zone they created. They are absolutely not allowed to prevent Egypt from sending aid in. They are absolutely not allowed to conduct a naval blockade.
Russia is food secure and has trade access all along Central and East Asia. Norway’s closure is in no way the same thing.
When the professional aid distribution people who work for the United States Agency for International Development tell you it’s happening, then it’s happening.
Because Israel set up an apartheid state. If they had set about building a representative democracy that included a constitutional right of return for Jews nobody would have had a problem. Instead they want to own all this land and oppress the people who live there.
Either that’s a legitimate goal or it isn’t. I don’t think it is.