Degrowth proposes radically reorganizing societies to equitably downscale the economy. The concept remains relatively unknown in the United States, a country whose oversized production and consumption have ample room to degrow. An informal survey suggests that American degrowth advocates tend to frame degrowth as necessary more than as desirable. But science cannot determine that any course of action is necessary; debating what worlds to create and inhabit is the terrain of politics. To build a political movement, degrowth discourse must illustrate the desirability of its vision to potential allies. Movements that have gained momentum in the U.S. in recent years have focused on social justice issues. A discussion of the state of degrowth in the U.S. concludes by suggesting that its advocates emphasize opposition to oppression and create spaces where degrowth and other social movements can collectively envision desirable futures.