> While alcohol can be used that way, it is not designed for that purpose

Alcohol was not designed. However, marketing campaigns for alcoholic beverages are very much designed. Though I agree that prohibition against drinking won't ever work and would never support it, I do think that prohibition against alcohol advertising and marketing would be a beneficial to society. You are allowed to drink, but you can't try and manipulate people into drinking.

> I would also claim that its addictive potential is lower all things considered.

The addictive potential of alcohol is higher because it is directly chemically affecting the brain. It also causes physical dependencies as well as mental ones. These two often work together and combined are more powerful then the sum of the parts. What is also true is that people who have a genetic propensity for addiction are both more likely then others to become addicted to alcohol, drugs, gambling, or any other usual suspects. Loot boxes are ultimately causing the most damage to the same population subset as alcohol is.