I feel these days you really have to separate out personalities from their work. Lots of my heroes when I was younger turned out to be complete and utter !#%*. Michael Jackson, Ryan Adams, Joss Whedon to name a few. It took me time to come to terms with that and just not worry about it. There’s more important things to worry about lol.
I struggle with this, as well. In some cases I'm able to put the "real world" aside, but when you're talking about, say, Mel Gibson it's hard. I still find myself able to listen to and enjoy Michael Jackson songs, but if I spent enough time thinking it through that might have to change. Not sure I could ever enjoy the Cosby Show again. . .I hear you, and yeah . . . that's great if you CAN do that . . . but some folks are such huge jerks that it takes you out of the viewing/listening experience. I don't need to be reminded of real-world idiocy when trying to relax with a bit of "escapism". The responses on social media and this forum show how it can drag people in.
Case-by-case basis I guess - some people will aggravate us enough to bail on anything they are involved in, others we can just shrug at
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With Joss, from what I've read, it seems he was just really tough on people and wanting things his way. I don't read into it that he was a misogynist, but a sometimes less than empathetic hard ***. And if that's true, and that's the criteria for judging an artistic person, then I'm not sure how many directors or even actors I could watch anymore. Christian Bale, Tom Cruise, Quintin Tarantino, Stanley Kubrick, all out the window. But everyone's got their own perspective and tipping point, I'm sure.