Yes anti-Fourth Amendment encryption will have to be banned.
However secure encryption that can be accessed by warrant is quite doable and affordable.
Won’t be as cheap and easy, but needn’t cost much more.
> However secure encryption that can be accessed by warrant is quite doable and affordable.
It’s doable and affordable. It’s also easy and cheap to build systems that cannot be accessed by the authorities. The really bad guys will go for those systems. Your neighborhood child-porn guy probably won’t get the inaccessible systems. But the large porn ring, and ISIS, and drug cartels will. As will foreign businesses that don’t trust the US government and think they will help US businesses (just like their government would them).
In what fantasy world do you live?
If it is breakable for the good guys, it WILL be breakable for the bad guys. Encryption is binary, it is either unbreakable or it is an open door. There is no other choice.