Satire in A Modest Proposal
Since Swift had to resort to creating this satirical essay to draw attention to Ireland's situation with such a barbaric solution, this line satirically indicates that he has little to no belief that any reasonable measures will be taken to help improve the situation.
The sixth point above and this line constitute Swift’s most subversive point regarding the moral and religious code in a Catholic country: marriage for the sake of raising children for food. This shocking incentive is further illustrated by proposing that children would also make an excellent food source at weddings and christenings. Considering that Swift himself was a Dean in the Church of England, we can see how far he is willing to push his satire in order to bring the Irish and the British to their senses.