How does the speaker attempt to persuade the audience to accept his proposal in the modest proposal?

In "A Modest Proposal," the speaker uses irony and satire to convey his extreme proposal of economically benefiting Ireland by selling infants as a food source. By presenting a shocking and ridiculous solution to Ireland's poverty, the speaker aims to highlight the dire situation and urge the audience to consider other more humane solutions. Through his exaggerated and absurd argument, the speaker challenges the audience to reflect on the harsh realities faced by the Irish people at the time.