"Bitcoin is NOT on Internet. It is a parallel decentralized network that can’t be controlled."

You don't have access to any such network you own. All your connections and data is transmitted to you over someone elses wires, for which you (or someone) pays to allow you access. All your BTC communications take place over the internet - or you're someone I need to listen to a lot more closely.

That decentralized network BTC has is software. It's data transmitted on someone else's physical wires. You don't have a dedicated wire you own for transmitting BTC data, and neither do the folks you transmit and receive BTC data with. You have the internet connection you are using to access Hive right now, and that's the connection you use for BTC.

Look at the connection to your computer. There is no separate physical wire for BTC. Look at your network connections in your PC software. There is no separate network device for BTC. You use the same network card for BTC transactions you use for the internet, because you use the internet for BTC transactions.