If they implement a public service, freemarketers not unlike yourself will accuse them of unfair competition and spend their lives sabotaging them, like Murdoch does with the BBC in the UK.
The reality is that your position is effectively that nothing should change, and everything in this space is as good as it can be. The public at large clearly disagrees, and this is a step in the direction of addressing some problems that are extremely hard to deny.
Besides, nationalisation would be nothing new. There are laws in your country, whichever it may be, for the state to confiscate your land for the public interest. That's not trespassing, that's the power of the collective trumping other rights. This is not it anyway - this is mandating standards, like the size of your electrical plugs.