Yes they are both big problems, the point is that not every problem can be solved through regulation. Sedentary lifestyles are a big problem but that doesn’t mean we should pass a law forcing people to move a set amount every day. At some point people have to be given the freedom to be allowed to hurt themselves and society’s role should be to help them make the decision not to. Ideally this is done through education, not force.

I don't think anybody is advocating to force end users to do anything, but we can certainly regulate businesses who profit of harmful products.

Sugar taxes, smaller cupsizes, transparent information about the dangers of consumption, and so on are all fairly modest ways to set the right incentives.

And when it comes to companies behaving in irresponsible ways, for example if it turns out they ran disinformation campaigns, or hid important information about breaches from the public, then I think from time to time it's fair to bring out the hammer and hit them with substantial fines.

It can absolutely not be the case that Facebook violates user privacy, is aware of it up to the very top, and the next day the stock price soars by billions of dollars because evidently the market doesn't take our ability to correct this behaviour seriously.