alt Hacker NewsYouTube is a site that pretty much everyone has an account already for (and therefore have already consented), but say you make YouTube 2, you can only make money if people allow personalized ads (they pay 10-20x untargeted ads). 90% less revenue means your business model doesn't work. The government in the area has decided you can't refuse service to customers that cost you money (people who don't consent).
You simply will have to go out of business.
This is also why you see many large companies fighting for more regulation. It's harder for a competitor to emerge if they have to navigate mountains of red tape.
What if I want to start a restaurant that can only make money if I use expired ingredients, run the fridge at a higher temperature to save on electricity, and don't waste my employee's time by washing their hands? These food safety laws mean my business model doesn't work.
I simply will have to go out of business.