Wordy, Showy

Monroe doesn't settle for one direct phrase when a long, multipart sentence will do.

Take, for example, this declaration:

We owe it, therefore, to candor and to the amicable relations existing between the United States and those powers to declare that we should consider any attempt on their part to extend their system to any portion of this hemisphere as dangerous to our peace and safety. (14)

Wait—what is he saying? America will see any European interference in the western hemisphere as hostile, and they want Europe to know that. There are definitely simpler ways to say it.

Or, how about later, when he explains how the U.S. has remained neutral during European power struggles, because their policy has been,

[…] not to interfere in the internal concerns of any of its powers; to consider the government de facto as the legitimate government for us; to cultivate friendly relations with it, and to preserve those relations by a frank, firm, and manly policy, meeting in all instances the just claims of every power, submitting to injuries from none. (21)

Phew, say that ten times fast. Well, don't, we don't want you to injure yourself.

The wordiness adds to the showiness of Monroe's writing style. Adding fancier words and more convoluted sentence structure elevates the language, making it sound more important. What sounds more impressive? "We'll interpret Europe re-taking Latin American countries as colonies as hostile," or: "[…] we could not view any interposition for the purpose of oppressing them, or controlling in any other manner their destiny, by any European power in any other light than as the manifestation of an unfriendly disposition toward the United States" (16).

Be honest, we won't be offended.

Insistent

Monroe's elevated language feels insistent because he repeats some ideas multiple times, in slightly different ways. For instance: "we should consider any attempt on their part to extend their system to any portion of this hemisphere as dangerous to our peace and safety" (14), and right after, "we could not view any interposition for the purpose of oppressing them […] by any European power in any other light than as the manifestation of an unfriendly disposition toward the United States" (16).

He also repeats the fact that the U.S. has stayed neutral in European affairs. "In the wars of the European powers in matters relating to themselves we have never taken any part" (9), he says. Then, later, "With the existing colonies or dependencies of any European power we have not interfered and shall not interfere" (15) and "Our policy in regard to Europe […] nevertheless remains the same, which is, not to interfere in the internal concerns of any of its powers" (21).

There's no shred of doubt: America is not involved in Europe's business.