Your premise is good, but it's not entirely true. Corporations are not in the habit of leaving money on the table, especially game publishers, and so, while it is fair to say corporations will attempt make up as much of the lost revenue as possible, there becomes a breaking point at which additional in-game monetization leads to a loss in initial sales, at that point the company must eat the loss and take the haircut. A company like EA is infamous for attempting maximize monetization, EA was going to add these ads with or without loot boxes just like 2k did. Nothing EA can do is going to bring back 1B in annual revenue if loot boxes are outlawed, they are going to have to take the haircut and their stock will tumble. I reject the notion that these games are not profitable without loot boxes and that the addition of loot boxes even adds additional resources to their creation. However, more to your premise, If loot boxes are outlawed, I expect we'll see game publisher enter into a highly exploratory phase in monetization in hopes of returning to current levels.