When basketball players stand they make it look like everyone else is sitting down. Perhaps they should all not be allowed to stand for the National Anthem.
Many years ago I was at Wembley stadium indoor arena to see an ice-skating show. Jehovah's Witnesses had block booked a whole section. When the National Anthem was played, no-one stood. A gasp went around the arena and the skaters looked up. Apparently they assumed we were communists.