I felt a lot of the same things when Michael Jackson was accused in 2003. I'd always felt uncomfortable admitting I was a fan of his when speaking to people since the 1993 case was settled; they always looked at me with negative expressions. It wasn't until all 14 counts came back as "not guilty" in 2005, that I gained a lot more peace over enjoying his music.
I don't know whether Mr. Singer's guilty or not, but if so, he should be locked in a dark hole for the rest of his life. I think I'd still be able to enjoy the "X-Men" movies, but a guilty verdict would make me feel very queasy about his work for a long time.
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God, guns, and guts made America; let's keep all three.