It is true, but I can see why you'd be confused. Let me ask you this: if members of the "the massive US middle class" can be replaced with automation, are those companies going 1) to keep paying those workers to support the middle-class demand which made them rich, or are they going to 2) fire them so more money can be shoveled up to the shareholders?
The answer is obviously #2, which has been proven time and again (e.g. how we came to have "the Rust Belt").
> That’s where the big money is at
Now, but not necessarily in the future. I think AI (if it doesn't hit a wall) will change that, maybe not instantaneously, but over time.