He's referring ... to his "art". Thats what the piece he linked to was a part of.
Its not poisonous nor reductive to decide not to follow an "artist" because his "art" is repulsive.
Sure, but at the same time it's debatable whether even an artist themselves gets to retroactively reinterpret their own art that way.
"I will never read anything by [AUTHOR] because some things [AUTHOR] wrote are now in my no no list."
Sorry, that just doesn't make sense to me.