Privatization is theft. When taxpayers paid for a resource - how the hell can a government then sell that to some rich bugger who will charge them more to use it. They paid for it, it is theirs and the government is purely an escrow holder over that service and infrastructure. It is not the owner (we the people are) and it has no right to sell it.
Privatization is the greatest government theft ever committed - there is no more obvious way to steal from the taxpayer and no other corruption or tax-theft comes close in scale to what can be stolen in this way.

Yet for some bizarre reason libertarians always encourage it... for some reason you would rather lose your partial ownership of something valuable than see your fellow citizens also part-own it.