If they reply, I imagine it will be some hog wash about the NAP (non-aggression principle). Which in short is a honor code they expect everyone to abide (currently not possible because government). It is a rather odd claim for the ancaps I think. They are saying something about solidarity and no one will want to work with an abuser/slaver. They will also deny that Ayn Rand's objectivism is distinct from their ideas, but interrogating them shows its not. So they have an appeal to solidarity, but the selling points of their ideology are selfish motivations. Historically that means there will be plenty who find their selfish interests are to side with an abuser/slaver/colonizer. Id compare them to a religious fundamentalist that just found some contradictions in the bible and is working on the apologetic.