No actually, the vast majority of those farmers got priced out of the business, or "outcompeted", or aggressively bought by a megacorp farm.

Very few family farms still exist. I know one from northern Maine, and they sure as hell don't seem to do better when potato prices go up, because well, they don't have any potatoes to sell when potato prices are up, because potato prices are up when they don't have any potatoes to sell!