How so? Orwell's stories dealt with class protectionism, and how the average person unwittingly contributes to systems of oppression and exclusion. Empire is about outsourcing the bottom end of inequality.

The article is about how removing those books - for the very stated reasons you outlines - could, according to the author, contribute to the rise of the right and the destruction of those ends.

(just an example; it really can be framed from pretty much any angle)