do you not assume people who disagree with you are acting in bad faith or are wrong? there are really only 3 options there. (the third being that you are in fact wrong).
anyway those choices don't exist in a vacuum and markets don't have the all-seeing empirical knowledge libertarians think they do.
Reasonable discourse dictates we assume everyone is arguing in good faith: i.e. that we are all similarly able to come to good conclusions, that we actually hold these views honestly, and we at least willing to entertain the idea that we could change our minds. If you do not believe this about a discussion, why waste time in it?
The all-seeing eye works for supermarkets all the way to the producer, it works for housing all the way to the builder, it works for cars, it works for services like garage, additional classes, etc. There is no reason people will all of a sudden be stupid when it will come to healthcare, transportation or education. Point is, competition is transitive, and the last tier is always competitive. Therefore by iteration every tier is competitive.
anyway those choices don't exist in a vacuum and markets don't have the all-seeing empirical knowledge libertarians think they do.