The people who are trying to install this kind of law basically do!
They want to change the public perception from "Private encrypted communication is good and desirable" to "Encrypted is unsafe. Encrypted could be scary. Encrypted enables Bad People."
In a vain attempt to inhibit access to non-broken cryptography, we will probably see operating systems that allow actual root access to the user -- or even just allowing non-manufacturer-signed executables to run! -- being painted as "unsafe platforms." Apple has already transitioned most of the way to being fully in the "trusted computing" camp, since it takes a great deal of gymnastics to even modify the OS because of the Mac's sealed system volume, and out of the box all executables must be blessed by Apple, meaning governments can put their thumb on Apple to force them to disallow any non-broken crypto tools from being used. I know this can be changed in Settings for now, but that'll probably go away eventually.
Microsoft will be next of course, and Linux will be portrayed as a "hacking tool" by contrast to the commercial OSs.