Delany's writing raises the perennial question of whether we can separate the art from the artist (the view in the current climate seems to be an emphatic "no", see for example the recent Times article about Nolde's paintings being removed from Merkel's office [1]). For the obvious comparison of Nabokov, I'm inclined to view Lolita separately from the author and his personal beliefs. If Nabokov held views similar to Humbert, he kept those thoughts to himself, and I don't think anyone reading Lolita can charge Nabokov of advocating those ideas, although it seems really popular to do so in literary circles today.

I am not sure the same case about "a lack of advocacy" can be made for Delany or his oeuvre.

[1] https://www.nytimes.com/2019/04/10/arts/nolde-nazi-exhibitio...