@Tinuviel I had the pleasure once of watching an interview with Will Poulter about the release of Detroit. In it he plays a racist cop responsible for interrogations, beatings, murder (based on real events). It has become my benchmark that I keep in mind as to what seeing an artist separating themselves from the art should look like. I think about this when topics like "can someone write a racist character and not be racist?" come into play.
Not to go back to HP Lovecraft, but you dont see HP Lovecraft writings where he approaches his use of racial language like Will does in this clip. There's no "this was very cathartic for me, getting into the mind of this kind of person to generate that kind of dialogue" with HP, but there is with Will.
I am truly fine with any stone being turned in a story so long as there is a purpose behind it. Nothing so cruel or hateful should ever be fun, and on the other side of it any author/actor/etc should be able to explain the deep dive that they took to portray that kind of thing.
At that point, I can separate the art from the artist.
ETA: But those dudes asking for lolli scenes on PenDes and other games like that aren't some vision of Jeremy Irons or Poulter going "I was challenged by this role to the point that I sought therapy after writing this horrible, horrible role...". Nah, those guys are more like "let me do my thing".