What reasons were used by Monroe to justify this foreign policy pronouncement, and how do they relate to arguments made during the revolutionary and early republic periods?

It was expressed at the beginning of the last session that an incredible exertion was then making in Spain and Portugal to enhance the state of the general population of those nations, and that it seemed, by all accounts, to be led with exceptional balance. It requires hardly be commented that the outcomes have been so far altogether different from what was then foreseen.