Governors Abbott, DeSantis, and a few others are committing democide – murder by government – with their policies which spread COVID-19. It makes no sense, but there it is.
Can the Federal government do nothing? State governments have in history acted against their citizens: Jim Crow and the suppression of organized labor are the obvious examples, but never before have state governments acted against the life and health of their supporters. The US system, as a result of its heritage of slavery and racism, limits the actions the Federal government can take against the state governments, but over the two and a half centuries since the founding of the United States, Federal laws intended to check the worst abuses of the states have been passed, though often subverted by a reactionary judiciary.
I think in Pres. Biden's shoes I’d have the Justice Department to work up charges against Abbott and DeSantis that would stand up in court – after so many infections and deaths there ought to be something, some law under which they could be prosecuted. It just might work.