I think it's more the technology, not the substance.
Alcohol addiction is bad. But no one is saying we should have "bottle free days" or "try not to use a glass until you've been outside" or whatever - no one is saying "bottles and cups cause addiction! We should not allow children to use liquid containers until they are 16!" just because they could conceivably contain alcohol. That is obviously absurd. You are not addicted to the glass or bottle, you are addicted to the alcohol.
Yet we as a society are basically doing that for screens. Screens/bottles are not in themselves bad, but it's what you as an individual actively chose to put in it that leads to the problem. Don't use tiktok or whatever, but do use the screen.
> Alcohol addiction is bad. But no one is saying we should have "bottle free days" or "try not to use a glass until you've been outside"
The original author isn't trying to ban all screens from public life (e.g. screens that show bus information) or religiously avoiding them, it is obvious that by "screens" they specifically mean the "addictive entertainment that is usually delivered via screens". This does not mean they will run screaming from a screen at the doctor's that's displaying their vitals.
Actually, there's an analogy right there in your argument! We often say "he's been hitting the bottle" as a metaphor, that doesn't literally mean someone is hitting a bottle, it means that they are addicted to the alcohol in it.
Cheers! [1] I love your crystal-clear analogy between glass screens containing slime and glass bottles containing alcohol.
It's the slime, not the glass.
https://www.youtube.com/watch?v=JPFIkty4Zvk
[1] The drinking toast, not the television sitcom.