They are not receiving plasma (or plasma products) because their short-term future looks so rosy - by their metrics, it's almost certainly positive-sum.
If they survive they can just donate their own plasma and PFAS later. One of the rare instances where a pyramid scheme makes sense. Every generation has a larger pool of untouched blood in which to hold our PFAS.
Human biological products (esp incl blood products) are a significant export product from the USA. Won't help Europe though because EU is one of the biggest importers.
