So if Lucretius criticized Epicurean opponents, the Stoics (and Platonists?) then that is where it is satire (which Cassius pointed out in post 8 above).
And does Lucretius ridicule those who believe pleasure exists in excess riches and power?
I found this:
Quotesatire, artistic form, chiefly literary and dramatic, in which human or individual vices, follies, abuses, or shortcomings are held up to censure by means of ridicule, derision, burlesque, irony, parody, caricature, or other methods, sometimes with an intent to inspire social reform.
Satire is a protean term. Together with its derivatives, it is one of the most heavily worked literary designations and one of the most imprecise. The great English lexicographer Samuel Johnson defined satire as “a poem in which wickedness or folly is censured,” and more elaborate definitions are rarely more satisfactory. No strict definition can encompass the complexity of a word that signifies, on one hand, a kind of literature—as when one speaks of the satires of the Roman poet Horace or calls the American novelist Nathanael West’s A Cool Million a satire—and, on the other, a mocking spirit or tone that manifests itself in many literary genres but can also enter into almost any kind of human communication. Wherever wit is employed to expose something foolish or vicious to criticism, there satire exists, whether it be in song or sermon, in painting or political debate, on television or in the movies. In this sense satire is everywhere.
QuoteBy their practice, the great Roman poets Horace and Juvenal set indelibly the lineaments of the genre known as the formal verse satire and, in so doing, exerted pervasive, if often indirect, influence on all subsequent literary satire. They gave laws to the form they established, but it must be said that the laws were very loose indeed.
And this source has more on understanding the genre: https://www.britannica.com/art/satire