Ok, let me create a separate hypothetical:

You have a society that really likes ultra processed food. I mean really likes ultra processed food, to the point of addiction. There are other things that society is addicted to, but we'll fixate on food for now.

Let's say you take ultra processed food away from that society. Or any other harmful addictive thing. What do you think happens to their overall satisfaction in life?

It is the objectively correct decision (at least before enough regulations are put in place that 'ultra processed' doesn't also mean 'packed with chemicals'). Let's say you assess life satisfaction after an event like this. What would their answers be? Would they be true or would they just be the thrashings of addicts?

My point is that I think if you ask a heroin addict if they're satisfied with life, their answer will depend on how long it's been since a needle has gone in their arm. I don't think the average person is actually capable of guaging their level of satisfaction in life, not to say that the average person is a heroin addict.