Yes. Taxing people to pay for those things requires coercion. Preventing other people from providing completing services requires coercion.

I have lives in 3 coubtries and never seen a government preventing anyone from building private roads, railways, etc. Somehow essential infrastructure is not a popular business investment

Also by that logic stopping people from dueling or stabbing each-other on the street is coersion . Stopping coersion by mafia is coersion. How is this a usefull concept?

Tax could befall only businesses, which are coerced anyway (as you need a license to start a business). Then the businesses increase prices for their products, for which consumers ultimately pay (uncoerced).

So how are they prevented from building competing tracks and more importantly how would one build competing tracks if allowed?