A football player and now a soccer player is kneeling instead of standing. Maybe I was taught wrong but kneeling is an act of submission. Kneeling would be the absolute last option I would take in protesting. Standing and turning ones back would be option 1. Sittng option 2.
If one protests why would one kneel? Submission is not protest.
Although people should do whatever they want during the national anthem. Other people should mind their own business. I bet for 99 percent the National Anthem is just background noise that their minds are elsewhere or wonderi g when it will end.