It’s a pretty nuanced problem. On one hand part of living in a civilized society means we should have a reasonable expectation of being able to use parks, sidewalks, and public transportation without worry of secondhand smoke inhalation and or danger.
On the other hand SPD will likely use abuse this beyond expected levels and punish people who are at no harm to others, as well as it disproportionately affecting minorities.
The root cause is obviously drug addiction/homelessness which is a fairly unsolvable problem under American capitalism. We can do things like nonpublic use decriminalization that will help, but overall it’s the combination of the two that drive each other and given we have no sense of true rehabilitation here in the states the problem will probably be here to stay.