A very worthy person, a true lover of his country, and whose virtues I highly esteem, was lately pleased in discoursing on this matter to offer a refinement upon my scheme. He said that many gentlemen of this kingdom, having of late destroyed their deer, he conceived that the want of venison might be well supplied by the bodies of young lads and maidens, not exceeding fourteen years of age nor under twelve; so great a number of both sexes in every country being now ready to starve for want of work and service; and these to be disposed of by their parents, if alive, or otherwise by their nearest relations. But with due deference to so excellent a friend and so deserving a patriot, I cannot be altogether in his sentiments; for as to the males, my American acquaintance assured me, from frequent experience, that their flesh was generally tough and lean, like that of our schoolboys by continual exercise, and their taste disagreeable; and to fatten them would not answer the charge. Then as to the females, it would, I think, with humble submission be a loss to the public, because they soon would become breeders themselves; and besides, it is not improbable that some scrupulous people might be apt to censure such a practice (although indeed very unjustly), as a little bordering upon cruelty; which, I confess, hath always been with me the strongest objection against any project, however so well intended.

• I found that here became tougher to read; however, what I can tell, Swift is making the argument that they cannot wait till the child has grown to be sold off and used for meat because by that time the meat from males is no longer quality and females would be a loss to society for they can start breeding. 
• Here Swift presents even more ridiculousness, adding a limit to his ideas. To qualify eating pre-teen women as cruel is funny because it insinuates that everything else he has suggested thus far is completely fine and not out of line.
• Swift again pushes his satire yet farther by suggesting young men and women up to the age of fourteen would be game to this treatment, were they starving and not contributing. the part in this section which was most important to me is when he says that they wouls reserve young women for breeding, because their murder might be "a little bordering upon cruelty" and that "some scrupulous people might be apt to censure such a practice (although indeed very unjustly)"
• Swift's last line "and besides, it is not improbable that some scrupulous people might be apt to censure such a practice (although indeed very unjustly), as a little bordering upon cruelty; which, I confess, hath always been with me the strongest objection against any project, however so well intended."  is just such so clever an addition to the the loop argument he's crafted. The falsely compassionate tone of that last section really works to make the reader feel as if Swift really cared about the fate of these kids, when in fact, his proposal to only eat one year-old children like roasted pigs is so much less cruel... If it weren't for the setup formed in the first few lines, which seems almost humble and genuinely concerned, I don't think the following bits would be nearly as effective.