As a foreigner I get so confused reading America’s Declaration of Independence while listening to President candidates

The Declaration of Independence states as one of its basic motives that “The King of Great Britain… has endeavored to prevent the population of these states; for that purpose obstructing the laws for naturalization of foreigners; refusing to pass others to encourage their migration hither, and raising the conditions of new appropriations of lands.”

And it also states as a motive for Independence: The King of England has also “combined with others to subject us to Jurisdiction foreign to our Constitution, and unacknowledged by our Laws; giving his Assent to their Acts of pretended legislation: … For cutting off our Trade with all Parts of the World.

And it also states, as a motive for Independence: The King of England “has excited domestic Insurrections among us” 

PS. How did America move from Reagan’s “Tear down that wall” to Trump’s “Build up that wall”, in just a few decades?

PS. When you build a wall, how can you really be sure you end up on the right side, with the right company?