I'd rather hear from the people brave enough to have tried this to gain their perspective.
Nicotine addicts like taking nicotine irrespective of the 101 toxic chemicals in smoke they get along side it. I'd rather the Surgeon General didn't say "oh well, let them do what they want"
I also have views around paid blood and organ donation in general. I think its a bad idea.
Why are we pretending this is anything but horrifying? We have multiple works of dystopia and horror fiction about this very premise: The Golden Compass, The Waterworks, Get Out, The Supernaturalist, Unwind...
Blood is renewable. You aren't losing blood you donate (or sell).