I don't disagree with this but the constant state of being "plugged in" is the issue. Mind wandering is a real useful practice and the being plugged in is antithetical to mind wandering.
Some of my most clearest thoughts, ideas, or beliefs came to me when I was just walking on the street not listening to podcasts, audio books, music or browsing social media.
I think it's far more useful to literally stare at a wall for 3 hours than just mindlessly watch youtube videos. I say this as someone who is addicted to social media/internet as well and struggle very hard to overcome.
What I do is use the freedom app to set time limits and ban these sites during periods of the week. I bought one of those timed safes where I stick my phone in to completely stop the temptation for 4 or 6 hours. I know I can't completely end it, but what I want to do is just nudge myself to do something else. Instead of grabbing a phone maybe I'll attempt to read a book, or draw, or work on some data visualizations, or contribute to OSS. All activities I'd say I value more than browsing reddit (or twitter or youtube or HN) for hours every night, but my actions prove otherwise.
I'm not saying I've improved my habits 300% but at the beginning of the year I would read a book for 5 minutes put the book down pick up my phone then read reddit for an hour; at least now I can read a book for 45 minutes without being distracted. It hurts writing this because in college I'd read nearly 500 pages a week + my readings for class, I'd read nearly 200 books a year but over the last 5 years I've probably read 3.
I don't know where I'm going with this, I guess my mind wanders when writing as well...