It's been shown that when companies will run products at a massive loss for years in order to capture a monopoly that most customers will make the individually

It's been shown that when companies will run products at a massive loss for years in order to capture a monopoly that most customers will make the individually rational choice of taking the free service offered. Youtube only got to where it is now by Google plowing billions of dollars from a different monopoly into it. Most of the other major "free" consumer tech products gained their market share by burning way more money than most competitors could afford.