Why IOTA tokens has any value? What is use case for IOTA tokens?
IOTA is not a token. It's a protocol on it's own just like Bitcoin and it Runs on its own network called Tangle just like Bitcoin runs on the Blockchain Network.
IOTA is basically useful for Machine2Machine communication or maybe payments.
E.g A Teslar car can now recharge and pay for the service by itself. Also the new autonomous cars recently launch in San Fransisco can utilize this protocol too.
In Germany, it's currently being adopted(pilot phase) by Power supply companies.
Its potential is off the chart.
This is a few points I have to share.
What you are saying does not make any sense. Bitcoin is not a protocol, the blockchain is not a network. Seriously educate yourself.