Summary:
“the enemy” is any individual, group (including a majority); government official, agency, or branch who wishes to deny individual rights under color of law or otherwise as they have not been given that specific power in the Constitution particularly those expressly enumerated in the Bill of Rights.
This protects all of us except those who wish to rule us via control of government force. Many of these people, imho, would rather sit in their darkened homes and call police on others than getting out in their neighborhoods and helping each other not to cave-in to criminals. They prefer to let others do their fighting. Clean hands, clear conscience, I guess. Eventually, when time permits, that same government will see them as weak and useless once these weaker ones have identified all the patriots to be killed. Then the weak ones will be destroyed.
Read any historical texts with eyewitness accounts: Holocaust, Cambodia, Imperial Japan, USSR and many others.