This is the reality of light frequencies. We restrict all of them, and have only a whitelist of actually usable open spectrum that everyone crowds in.
What we really need is just a blacklist of low frequencies for emergency coding and military use, while the rest are open. Intentional interference would still be illegal as it is now, because that is a disjoint law independent of whether spectrum is private or public.
Some wireless systems need to work. We cannot lose the lead in a Broadway show, security radio at a major event, time synchronization, air traffic control, or the ability to make a 911 call because someone wants to torrent a TV series in 4k. "Sorry, spectrum is crowded today, go home" is not a viable option for the many businesses and situations that depend on RF the way it is for WiFi in a crowded apartment complex.
What we really need is just a blacklist of low frequencies for emergency coding and military use, while the rest are open. Intentional interference would still be illegal as it is now, because that is a disjoint law independent of whether spectrum is private or public.