For most intents and purposes, the difference between legal and fully decriminalized is not significant.
The parent’s point is that there are many parties with an interest in drugs being criminalized, which explains why the world has not copied Portugal’s decriminalization model.
“Decriminalized” is the same level as when literal snake oil salesmen were going around fairs in the 1880s selling unknown substances that killed you
“Legal” is when the quality is regulated and analyzed for a specific purpose and consumers know what they are buying and sellers face consequences for violating that
Parent talked about profit, but in Portugal the production, distribution and sale are still a crime, and therefore the people profiting from those activities are still the same.
So why not in Germany, the UK, France, Sweden, Italy? Why just Portugal? That is the question.
Less US-centric thinking!
Which is to say, there is a bias everywhere in favor of the status quo.