[inigyou]

The licensed spectrum is not empty. It is scarce because it is fully allocated! Chances are that most of the allocated users are not using it in a given geographical area, so there's space to argue about allocation policies, however.

You can also consider trying to get a license. Costs and probability of success vary widely, but you may as well find out what they are before complaining.

Some European hacker events get temporary licenses to run their walkie talkies and even their own 4/5G cellphone networks. I assume they are cheaper and easier to get than permanent licenses.