It is ok, its part of being a free society! Is kneeling something I would do..... absolutely not! Like I said earlier....I rarely yell Sioux, little uncomfortable for me, but I do enjoy hearing people use their rights to yell it.
Do you also get mad at all the NFL players that are seen with their eyes closed, lips moving which looks to me as if they are praying during the anthem? Are they disrespecting the country and the military?
This butt hurt stuff has to stop. Do what you want, and let others do what they want. As long as they're not breaking the law or making themselves feel wrong or uncomfortable about it, why should your feelings stop their right to do whatever?
Let's bubble wrap the world!