Jonathan Swift was of the Tory party in Britain, which had seen its waxing and wanings over time. Mr. Swifts career similarly waxed and waned with the fortunes of his party, and he took exception to those policies which impugned men of good honor and character. His earliest writings were satirical and took Britain to task for not taking a firmer stance on the subject of religion. And those early writings marked him as a man of no mean wit and substance.
With the writing of Gullivers Travels Mr. Swift poked much fun at the Whig party and Mr. Walpole, who led the Whigs in Parliament. Also, he saw that the rightful monarchy had been usurped by those who did not hold the same religious and moral values of the English populous and he ensured that his views on that were enshrined in each of the kingdoms Gulliver would write about. This is material that SHOULD be taught with the book, but usually isnt as it would require a combination of english (language) teacher and historian to properly structure and present such a course.