"How about all the ingredients that are animal based?" he asked. "But it's more than that. Let's say that the numbers are right and we have about twenty-seven students, eleven and up. Now, we're going to go to some of these people who have managed to hide their power, and I know what that does. It isolates you, it makes you distrust people. They made it seventeen, eighteen years on their own, now they are going to uni, getting jobs, and you are telling them to stop everything to go farming with you. I can't imagine that they will be very trusting. But say we manage that too. Now we're getting kids who go back home to their Muggle parents and tell them that school is more farming, because that's what herbology is," he said.
"Let's assume that the parents don't give a crap. Now they are told that we don't really do magic, because most people don't know how to do wandless magic, so they can't teach it. Oh and by the way while looking for clues we need to become survivalist. Let's assume that even that works and there's a lot of assumptions, now you think that we can keep the adults that arrive here, to this life of poverty- for what?' Harry asked. "Most people like their commodities. The Malfoys probably have their manor with house-elves, but it's not only them. Even people who are considered poor will end up jumping boat once hunger arrives. So why would anyone, either students or new arrivals, want to be here? Why not leave? You are used to doing with whatever you have, and you are basing this survival on living like you did because some is better than nothing, but that's not true for most.
"But once again, let's assume that we get people to live with limited food, now we have the problem of students that have to travel daily for your theory to work. They can't Apparate, there is no floo system. We can't have them traveling hours and hours on no train. We could send the house-elves I suppose, but if they live with anything other than family, we might be breaking the Statute, because where do they disappear from? The house? The house mates would know. Outside? Then they are likely to be caught on CCTV or a cellphone. So we have a whole new set up of problems," he said. "And even if magically, we manage to overcome every single problem I have mentioned then what? We still have nothing. A society needs a government and a government needs money to operate. We also need so many other magical objects, which requires to find these clues and that requires our attention more than fishing." He took a deep breath. "Sorry, I might have played this scenario in my head a few times already.
Harry rolled his eyes. "There are other children. The curse is not genetic. You never believed it, no matter how many times people told you. Women can't carry to term because of the transformation, but a men can father a child. So once again, feel free not to have a kid, but let's not spread misinformation when we're trying to create a better society. Also he would have been a bigger fool to leave his pregnant wife, even if they hadn't planned their child." He let the matter of Greyback die, because it was irrelevant now, and Remus wouldn't have like Harry's answer anyway. You always fought for what was right.