I do see it as being about a corrupt system interfering with fairness and the best possible development of the best possible players. I also see the 16-year old to barely-18-year old kids more as students than as employees. They are H.S. kids at a free boarding school, with baseball rather than rugby.
But frankly, I do find it unjust and off-putting to demand that so many , posters insist that MLB is ethically required to treat a 16- and 17-year old from the DR the same as an 18- and 19-year old from the U.S. The American high school student is not permitted by baseball rules to sign with an MLB organization, get a big bonus, and have his development paid for. H.S. baseball instruction in the U.S., especially here in the Northeast, is notoriously poor. Quality of instruction at that level is parent-paid. The American H.S. graduate, three years older than the DR kid was when an MLB team committed to pay him a big bonus, isn't allowed to shop his services to all MLB organizations, seeking the highest possible bonus. He is the property, possibly for a dozen years, with meaningful arbitration to receive a salary that is equitable to his talent available only in the final few years of that period, of that organization, which he did not get to choose.
Unless and until the LA players and their representatives, and the Latino MLB players who influence their union to fight for preservation of the current corrupt system, are willing to live by the same rules as American H.S. kids and recent grads, it makes no sense to me to give them the same salary as the two-year older Americans, who have surrendered basic rights for that salary.
I don't see why you question the quality of food and housing at the DR academy. It is very much in the teams' interest to build up the players strength, health, and emotional strength in addition to learning English, baseball instruction, and weight training.
To me, the ideal solution is for MLB to run the academies for 16- through 18-year old kids, with an academy league for the 17- and 18-year old kids, with a draft for those who have turned 18 and all of the draftees who sign being required to be brought to a state-side team. This eliminates the cheating and corruption and makes allowance for the differing circumstances in the LA baseball hubs.