Its not inherently bad, but when 15-20% of the countries population is below the poverty line,

By 15-20% you mean 11.1% (or possibly a bit higher)?

Image

source

then yes, it is a very bad idea.

Further, your response sounds like its just to my rhetorical question of “is it?” without any recognition of the future policy you’re implying of banning paying for blood. Let say you get your way and paying for blood products in the USA is banned as it is in most other countries immediately. More than 70 percent of the entire world’s plasma used for plasma therapies is now gone. How many lives has your policy cost in the weeks and months from patients around the world going without these and dying? What is your plan to not only deal with aftermath of your policy, but create an alternative that would prevent future suffering and fatalities for scarce supplies?