So you're saying that all Communists are a violation of the NAP and we should line them up against a wall and shoot them because they are an act of war simply for existing?

YES

Not quite. Not all aggression should be met with the same force. There is such a thing as proportionality.

• A communist's existence on earth is aggression against humanity, but is to vague to do anything about.
• A communist's existence in a public area you enter is an aggression against the public, and he should be roundly condemned. Then forcible removal can be discussed and agreed upon with the necessary ordinary force.
• A communist's existence in a private area is an act of aggression against the private owner's rights, and you should force the communist to leave with ordinary force.
• A communist's existence in your private property is an act of aggression against you, and he should be physically removed as quickly as possible.

I don't think I've ever met one of the hardcore libertarians that would disagree with that. The faggy pretend "left libertarians" that have no understanding of economics would, but they also think that libertarianism can be chopped into pieces and they can just take the "no drug laws / no anti-degeneracy laws" and throw away the rest.

They're as libertarian as the antifa fags are actually anti-fascist - a negative value.