I think Protest can be patriotic if it is done to fix an issue and make our country better. Many of those people who kneel in front of the flag make a valid point about where we still need to improve in America. That does not mean they hate this country or the flag. In fact, for many who protest, not only in the NFL, it is quite the opposite.
The limbic system is a group of interconnected structures located deep within the brain. It's the part of the brain that's responsible for behavioral and emotional responses.