I agree that there are pockets in the world that 100% of HIV sufferers do not have access to effective treatment. But, WHO, DWB, AMREF, Global Viral, IMC, Mothers 2 Mothers, Mercy Ship, and many other non-profit, non-Government humanitarian organizations, are still trying to reach that 100% target. I'm sure you're not suggesting that if the results are not 100% effective, that we should no longer address the problems? Unless you can demonstrate the opposite, on average, the majority of HIV victims in Africa, do have access to HIV treatment, and can afford it. In some places cost IS due to scarcity and it is supply that is the problem, but these problems are the exceptions to the rule, not the rule.
Regarding your friend with diabetes. Pressure your representatives as a collective voice, to allow importing animal-derived insulin into the US. Look into private and governmental programs that can help subsidize out of pocket expenses for treatment
https://diatribe.org/how-to-get-diabetes-drugs-free .
https://www.novocare.com/psp/PAP.html Also look into the cheaper biosimilar alternatives to the generic insulin. Your friend must realize that the system is rigged against him, unless he/she is willing to jump through hurdles and not give up. There are solutions and rewards, for those who are willing to persevere. Please let me know what I can do at this end?