If she had come out as a Conservative, or a Republican, her career as an A-lister would have been over, immediately.
Many of her staffers would have quit, and much of her youthful fan base would have dropped her like a hot potato. She would have been reviled and excoriated on every late-night show, and on countless alternative-media websites.
Her concert venues would be picketed, with property destruction riots accompanying every show from now on.
Her glamour sponsors (apparel, cosmetics, accessories) would have dropped her.
Her European tour schedule would have collapsed.
This is a little disappointing, but when you look at the realities of the entertainment industry, it is completely predictable, and inevitable.
Agreed, by why take a stance at all ? Unless she was being heavily pressured by her producers.