Visibility to an issue she wants to get attention. Not singing it at all gets no media attention. Protest local police stations and courthouses, it brings attention to the issue on a local level. Protest professional sports, and it brings attention to it to millions upon millions of viewers, gets on ESPN and Fox Sports, and makes it a national topic. It's not about protesting the anthem. It's about bringing an issue to as many people as possible on a national level. And that's exactly what it's done.
Better analogy than yours. People protesting during the anthem are NOT protesting the anthem. To amend your example, it would be like a drunk on the side of the street protesting a specific liquor store because the owners are racists.
The porn analogy was bad. This liquor analogy is bad. They are NOT protesting the anthem. They are protesting DURING the anthem. It's hard to believe that you can't realize that and that you think your analogy applies when it obviously does not.
No mixed message. You just have a bad interpretation and/or understanding of what's going on. She sang the anthem because not singing would bring no attention to it. If someone robbed you and you felt wronged and wanted to do something about it, you don't go to your bedroom, lock the door, and complain. How does that effect change?
The anthem is not being protested. Let me say it for the umpteenth time. The national anthem is NOT being protested.
There is no mental gymnastics going on here. It's you either not being able to understand what is being protested or blatantly refusing to understand it.