What don't you understand here?
It's 100% possible to solve world hunger, there is enough recourses, we can also make a house, home or 1 room shelter for everyone on the planet - however those with the available recourses & influence have chosen not to do this, I do not understand why, as they would remain abhorrently rich & still retain their 'power' & influence, & further to that, had she done that (she wouldn't have personally had to lift a finger, only commanded others to do the work) she would have gone down as the greatest monarch in history making sure everyone was fed.
As it is, since the righties, brexiters & flag worshippers have recently got their way, UK living standards have nose dived, the cost of living has doubled, food banks are nearly out numbering McDonalds & starvation and hunger in the UK is now at its worse since the 1800's.
Charles or William have a similar choice, I doubt they will make it happen either - revolting, considering they get millions from tax payers money - id rather that money went to feeding starving people, not already billionaires.
Hope that's clarified things for you - I'd be astonished if you disagree with that logic.