Rat,
don't understand why people are so enamored with them both. People standing and putting their hands on their hearts is like the Nazis. I support the players for not standing for it.
Well you see it is like this if you get youths from 4 years old and up and make them pledge allegiance to a flag with their hand over their heart and sing the national anthem and My Country Tis Of Thee every school day it is gonna stick with them even in their adult years. It's called public education/indoctrination so that this response is automatic. Herd mentality is what the governments are seeking for people living under their control it make them easier to manage and control.
Which is reasonable for countries to do to get everyone in the country on the same page and insures plenty of men and women willing to risks their lives in war and advance national indoctrinated goals.
Trump on the other hand now that he's commander and chief of the us armed forces finds it very disturbing that someone would be so sacrilegious as to not follow the proscribe procedure for proper honoring of a nationally selected song during a football game(now that he's the boss).