A pond of sufficient size, could they maintain it, would increase greatly the viability of their efforts at self-sufficiency. I know of a subsistence ranch on which two acres of a twelve-acre parcel were given over to an artificial pond stocked with trout. This attracts a lot of wild game, and along with a small garden plot (I think maybe a quarter of an acre) and some fruit trees, this produces substantially all the food needed to support four people. Their rabbits and chickens are supplemental, but not strictly necessary.
Of course, I don't know that this kind of pond is sustainable on the Tranch's plot. The ranch I'm thinking of is not in a very wet location, but it's not desertified sagebrush either. Taking advantage of the presence of wild game requires some marksmanship and the right tools for that job. And, of course, farming even a small plot is work.
If they had bought better land, taken better care of it, and learned anything about subsistence farming, they could be quite independent of GoFundMe grifting. But that would be effort. So much better to buy prepared foods at WalMart and whine online about all the toys you need.