Note that ADSB proposed is broadcast only. DJI has argued against it for drones and has a demonstrated alternative.The ADS-B In idea on DJI in the future...at least let's the drone watch out for the bigger guys...but nothing is going to be strong enough coming from a drone for the big guys to be able to pick up. The drones are less predictable about their motions that the real thing.
The drones in NAS is a definite pyramid change for the FAA, and it isn't quite working.
Most people felt like Remote ID will ground most of drones because of several factors and will only identify drones for LEO purposes. It won't do anything to prevent incursions.
I don’t want just anyone to be able to ID me and my location with ADSB.
ADSB will likely create criminals primarily rather than grounding drones.