No thanks! Currently China is using drugs to destabilize and damage the USA. Fentanyl is a weapon.
There will always be people that do bad things for the sake of doing bad things, but most of the abusive situations stem from a lack of basic physical and mental safety and the capability to resolve one's own problems.
No, it's a drug that has legitimate use cases. It's only being put out there "recreationally" because the illegal drug market is unregulated and "safer" drugs are not accessible.
The War on Drugs was never about protecting people from self-harm. If you think otherwise, you're imposing some sort of moralistic revisionism.
To promote ending this disaster is not the same as promoting drug use. It's about reducing the crime that it creates and make the world safer for everyone.
If you know what you have is a specific concentration of fentanyl, you can measure out a safe dose. If you know what you have is a specific concentration of heroin, you can do the same. If what you have could be either fentanyl or heroin and you have no idea what the concentration of either might be, then there's no straightforward way to consume it safely.
It wouldn't be a topic of discussion now if opioid users had safer and better alternatives.
Disclaimer: I'm not a recreational opioid user. My brother, on the other hand, was an opioid addict who died of a heroin overdose. This topic is personal to me.