Les Miserables as a protest novel via The Mary Sue (Kaila Hale-Stern)

There were two suggestions in Why do we think poor people are poor because of their own bad choices? (Maia Szalavitz)
Dream Hoarders: How the American Upper Middle Class Is Leaving Everyone Else in the Dust, Why That Is a Problem, and What to Do about It by Richard V. Reeves
Ghettos, Tramps, and Welfare Queens: Down and Out on the Silver Screen by Stephen Pimpare

There were multiple suggestions in Reading the Resistance: How book clubs—and the women who join them—are meeting the moment of Trump. (Ruth Graham)
Just Mercy: A Story of Justice and Redemption by Bryan Stevenson
On Tyranny: Twenty Lessons from the Twentieth Century by Timothy Snyder
WHAT WE DO NOW: Standing Up for Your Values in Trump’s America by Dennis Johnson, Valerie Merians (Editors)
Between the World and Me by Ta-Nehisi Coates
The Underground Railroad by Colson Whitehead
Small Great Things by Jodi Picoult