It's about a bunch of keyboard kommandos getting on their high horses about the national anthem and the flag. As far as the players, they're damned if they do and damned if they don't. Here's a quote for you:

“So just in case you’re unclear on where I stand on this topic, I’m going to leave you with my most important thought today,” he said. “If you can’t treat someone with dignity and respect, then you need to get out. If you can’t treat someone from another gender, whether that’s a man or a woman, with dignity and respect, then you need to get out. If you demean someone in any way, then you need to get out. And if you can’t treat someone from another race, or a different color of skin, with dignity and respect, than you need to get out.”
--Lt. Gen. Jay B. Silveria, superintendent of the United States Air Force Academy (USAFA), in response to racist graffiti