Sorry, but your implied argument is flawed.
My actual argument was the ride-sharing addressed systemic racism that yellow cab companies did not, that is a good thing.
What net good would fentanyl do to society? If it exists, then yes, sell it. Clean, reliable fentanyl might be a good thing, I don't know.
The fentanyl using part of society thinks it is great. There you go.
Sorry, but your implied argument is flawed.