Your premise is that things of the public use nature are used equally, therefore it's permissible to tax us to support them.  But that premise is incorrect.  Virtually nothing is used equally by Americans.  The reason that we (or at least that I believe it is permissible to) tax people to pay for police, roads, libraries, school, etc. is because society has determined that the government should redistribute resources in order to provide for those who could not otherwise afford it.  This is a socialistic principle.  But simply supporting some socialistic principles does not make one a socialsit.  It is when you find yourself wanting to redistribute resources for a majority of things that COULD be done by private companies/citizens that one crosses the line to being a socialist.

Parent