the charedi world is basically doomed
I will disagree there and its very likely the CHaredi world will be the domninat form of Judiasm in about 50-75 years and it has nothing to do with devices. It is other forms of Judaism that is likley doomed
Most charedi families have 10-17 children while the more modern have alot less kids and frankly the Charedi are more committed than the more modern who according to Pew have a higher leaving rate than the Charedim