I’m kind of curious here about what solitude means. To me, the internet is a lot of reading. I’m not actually with anyone. I’m really on my own, in solitude (usually), just exercising my mind.
Let’s say we’re off in a mountain redoubt somewhere, like @Coloma, and we don’t have the internet, but we do have books! The books are only different in one way from the material on the internet: they have a longer period of time between interactions.
In prior times, people wrote a lot of letters. Phones were expensive, and travel was even more expensive. So letters were the big thing used to communicate over long distances.
Is a letter writer from a mountain redoubt, where a person lives without seeing another live human for months at a time, living in solitude? What if he gets ten letters a day? What if there is a courier service made up of owls like in Harry Potter’s world, and they whisk handwritten letters around the world in minutes. Are you in solitude then?
For me, the answer is that the internet does not take me out of solitude. It just quickens the speed of what is still asynchronous communication. Even if I use messaging, I’m still in solitude. The only time I might consider that I am breaking out of it is with voice or video interactions. I mean, I would definitely consider those to not be solitude.
But do you see what I mean? I’m just not sure what concept the OP is using, nor why that particular concept of solitude has been chosen.
And then there is another assumption that I read into the question and that is the assumption that solitude is a good thing, but a rare thing, and difficult to find. I question all those notions, but that’s beyond the scope of this particular question.