Identifying Rhetorical Strategy in Economic Inequality Speech

In the following excerpt from a speech on economic inequality, the speaker argues for systemic change:

“It is not enough to simply provide temporary relief; we must confront the underlying structures that perpetuate wealth disparity. The failure to act and challenge these systems is a direct betrayal of our collective values. We have a moral obligation, not just to our own communities but to future generations, to dismantle these barriers and build a fairer society. Only then can we look each other in the eye and take pride in what we have achieved together.”

Which rhetorical strategy is most evident in the speaker's argument?