Our taxes keep the sewers working and the police force paid. The US taxpayer funded the creation and development of the internet. It was taxpayers' dollars that developed the first database. Private enterprise would not and could not have funded it. Governments are very inefficient, and a lot of our taxes are wasted.
Big organisations are inefficient.
In 1977 an incoming Irish government abolished local government taxation to fulfil an election promise. The plan was to fund local government services from central funds. This worked well in most counties in Ireland except in County Cavan where I live. Cavan has a lot of roads per head of population and the terrain and soils create special difficulties for road maintenance. By 1987 the county's roads were wrecked.