Earth comprises distances, great and small; danger and security; open ground and narrow passes; the chances of life and death.
Where definitions are fluid there is no true communication. Until those speaking do so from the same place of understanding, there will never be understanding.
An enemy is a simple thing, that is made complex by ones fear of it. Enemy is defined simply as someone who hates another : someone who attacks or tries to harm another: something that harms or threatens someone or something.
The enemy of an individual (of, relating to, or existing as just one member or part of a larger group: having a special and unusual quality that is easily seen.) is and will always be government (the group of people who control and make decisions for a country, state, etc.)
Simply because the individual cannot exist as such within an organization or country that requires obedience of its people. Since all city-states (a state that has its own government and consists of a city and the area around it) require obedience to their governments to live around or in them, there can be no original thinking or freedom (the absence of necessity, coercion, or constraint in choice or action) eg., the individual is coerced into becoming just another voice in the crowd.
It is only with a tribal ( a group of people that includes many families and relatives who have the same language, customs, and beliefs) governance approach that the individual or freedom can be realized.
This does not mean one is free to be themselves within the tribe, but it does mean one is free to question, leave or voluntarily accept the rulings of the tribe, this is absolutely opposite of what a city-state government allows or can allow.
So what are your enemies, if you support the city-state governmental approach (modern governance) than your enemy is me and all those who are individuals involved in free thought and to an extent action. If however, you do not support the warfare, bloodletting, murder, theft and rape that accompanies all modern governments, your enemy are those governments.
How do you avoid, ignore or otherwise protect yourself from them?
Not by using them, rather by in as much as is possible avoiding them and or working to avoid them.
Never have all your preps/eggs in one basket, split your firearms, ammunition, food and more up between multiple locations. If they come for you, let them take what is at that location. Understanding you will be able to rearm and take back what is yours when it is tactically sound to do so. Never allow the enemy to choose the battleground, always be the one choosing it, and do so in a manner that allows them to believe they are choosing it.
But dont fear them
Free the mind and the body will follow