I only used a macbook personally around 2009, but I imagine these days you can't just buy a new drive and install MacOS on it...
I don't understand why we accept a product there the above isn't possible. If security is the argument, those claims need to have some proof of a widespread problem actually existing that was solved by removing the ability to swap your drive in your own computer.
Hard to know without running the experiment again without the controls to see how much more theft would result were they not in place. I doubt the theft issue would be better without them.
You are just letting the perfect be the enemy of the good by demanding absolute results.
I don't understand why we accept a product there the above isn't possible. If security is the argument, those claims need to have some proof of a widespread problem actually existing that was solved by removing the ability to swap your drive in your own computer.