It looks like Uncle Sam is representing the freedom of the US. The people walking aboard are europeans tired of tyranny in their homeland. 2 pull factors would be freedom of expression and freedom from religion?
however i am just assuming because there isn’t much context around the picture.
B. feeling
hope i helped !
(This isn’t going to be an actual paragraph answer - don’t put this as your answer, this is just some guidance) I don’t know if you’re familiar with Machiavelli’s “The Prince” but in the text Machiavelli says that all a man really care about is his property (or something like that, I’d fact check it/get an actual quote). Locke very much so supported a absolute monarch and “The Prince” is essentially a guide of sorts for absolute rulers -> Locke was a fan of Machiavelli’s work. Thomas Jefferson on the other hand did not support an absolute ruler (he was of English decent, like other American colonists, and England was a constitutional monarchy, hince the American constitution/government) and therefore probably didn’t support Machiavelli’s work but he was a fan of Locke (a lot of the founding fathers were fans of enlightenment thinkers, John Locke was an elightened thinker) so Jefferson took his ideas from Locke.
Explanation: the assassination was part of a larger conspiracy intended by Booth to revive the Confederate cause by eliminating the three most important officials of the United States government.