All current DJI drones already have a version of Remote ID installed. There is also the possibility that the software can run through your mobile device. The Fly App, for example, already knows where your drone is, transmitting that information to a Remote ID server would be easy. The situation isn't as dire as so many want to paint it. There are way too many Paul Reveres and Chicken Littles in this hobby.
Don't get me wrong, I'm no fan of regulation. Some of my previous forum bans have come from fighting over NFZs and regulations. Unfortunately, my job has placed me in a position where I see the other side of it now. 3 drones have been confiscated in the last month or so at out local Airport for flying close to the tarmac or on airport property. One was hovering by an aircraft attempting to get a shot of a kid off to visit grandma! True Story. If the FAA introduced rules that required a registration to buy a drone, I'd struggle to argue against it at this point.
Basically, I've lost the ability to maintain my previous mindset that "we are responsible pilots in the drone community and can regulate ourselves..." Nope. Anyone can stroll into Best Buy and purchase a drone that can fly miles away from the operator, weighing over 1.5 lbs, at almost 100mph. Heck, anyone that shops at Wal-Mart can stroll in and buy a drone... think about that as you watch "People of Wal-Mart" videos.
My plan is to keep a calm demeanor, with my eyes open and see what happens. Quite frankly, this type of regulation is almost impossible to enforce. Unless they can coerce them by attaching it to their FCC permits. I also find it interesting that almost all of the major shipping companies, including Amazon have withdrawn their applications for BVLOS permits. I guess we'll see where this goes.