In this regard, he asked whether it is ethical that the pandemic has claimed four times more lives in the poorest countries than in the richest.
"Not denouncing this model of accumulation that concentrates income in a few while millions are submerged in poverty can make us accomplices in consolidating so much inequality," he said.
Fernández warned that the world must learn the lesson or "we will be heading towards ever greater confrontational situations."
In stating the need for a cooperative multilateralism that strengthens the rule of law, the President assured that only in this way will it be possible to "stop several of the threats facing humanity."
"The injustices we observe will only worsen if extreme positions are installed, if wars are sustained over time, deepening hunger and if a persistent inflation ends up corroding the income of the weakest," he said.
With this approach, the Argentine head of state called for the abandonment of "the economic and financial practices that the developed world requires the world that is trying to develop to comply with."
"To sustain this present, will only increase poverty and marginality," he warned.
In her speech, Fernandez also highlighted that "indebted nations suffer much more the effects of the established system."
"Argentina is among them; for that reason, I want to thank all the States that supported us and support us in the complex process of renegotiating our foreign debt," she said.
This is the first time the current President of Argentina has intervened in person at the UN General Assembly, since in September 2021, his speech was delivered telematically.