Personally, this situation would fall into issues I have with other bands/authors/popular figures and how I handle their material. If I own copies of their media, whether on CD or downloaded files or physical books, I will continue to listen to or read it if I do enjoy it. I will no longer purchase anything new, stream on any platform, or borrow anything from the library as a way to show my non-support.
An example: I loved Coraline by Gaiman. That guy is a gross creep, but I already own a copy of the book and the Blu-ray, so I keep my copies and do not purchase anything I do not already own.
Edit: fixed some grammar because I’m a dork