Well... I have never bothered to study authors' (of fiction) politics before reading their books.

It is possible that Marion Zimmer Bradley had deep, hidden themes in the "Darkover" series.. (yes... womens' issues were pretty clear, and cultural issues were discussed...but..)

I also listen to Burl Ives without thinking much about his sad political history, and Ewan McColl without concerning myself with his sneaky name change and attitudes.

A work of literature should stand on its own. If various moral, cultural and psychological themes 'seem' to be obvious, one can then decide whether to buy (or even just read) the book(s).

I find in science fiction the most interesting ideas expressed in many ways. "Mote" was one of the most challenging.