Why would you go to see a musician who you have opposing views to just to then leave when they preach those views at their show?

Kaneki05
This all came from Halsey with people a few people leaving after she chanted pro choice views in her concert. She's pretty left and not exactly quite about it so to me it's just very dumb to support someone who say's such things to then leave when she say's it in person lol.
It would be like been a bush fan then going to see Eminem then getting upset at his song "Mosh"
Why would you go to see a musician who you have opposing views to just to then leave when they preach those views at their show?
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