Would they do that if the government just gave them the drug they are addicted to for free? I don’t think so.
Is the real problem then the addiction, or the public policy context in which the addiction exists?
Of course, I wouldn’t want to be addicted to opioids, even if the government gave them to me for free, due to the potential negative long-term health consequences, and also potential negative impacts on cognitive functioning which may in turn limit one’s educational/career/life prospects. But I don’t know if being in such a scenario, even if millions were in such a scenario, would be a “crisis” in the same sense that opioids currently are