In the long term, bring drugs to people without thorough testing and regulations. It's one thing for e.g. stage 4 cancer. It's another to let a Vioxx get through.
Strict regulations around the development and testing of drugs exist because no human is capable of evaluating efficacy for themselves, absent stringently controlled testing processes.
We laugh about "snake oil salesmen", but given the amount of money in nutriceuticals, GNC, and the like... I'd say the only damn holding back the torrent on the unsuspecting is the FDA.
Look, I agree this isn't likely to be the scalable and safe solution that solves the cost crisis. But maybe we DO need someone to throw pills out for free just to show the absurdity of our current system. Because if it's something you need to live and the system is built to make something fundamentally cheap ultra-expensive, it's REALLY hard to see what this man could be doing wrong...
I am not suggesting this is the truth, or even a prediction. But I reject the emotionally charged language that people use to say there are no downsides.
There are always potential downsides; it is a dangerous way of thinking to be unable to see possible negativities and use that as certainty of a position. Otherwise, there's just no downside to Pascal's Wager, and we all must believe in God.
Perhaps they could get their point across while acting a bit more professional?