In reality simply that the US lets you pay people for blood plasma, an the market does the rest. There are similar arguments made for kidney donation. Paying p

In reality simply that the US lets you pay people for blood plasma, an the market does the rest. There are similar arguments made for kidney donation. Paying people a set amount kidneys is exploiting the poor, but most those who need kidneys are not well off and there is an enormous shortage causing massive shortages, so some argue that we should pay since society would be net better off.