Your question has been answered in prior posts, but I can see a movement growing up where people will have designated blood donations if they’ve not stored their own. I.e., church or other member groups will have drives, or lists of people in the various blood types who will donate to another member in that type as the need arises.
And I can see businesses grow up where they have only very highly tested blood that one can buy beyond the standard blood banks. People who will have alternatives available to them will not be accepting transfusions from the general pool of blood banks.
That would be a great idea, parallel to the Christian healthsharing ministries that escaped Obamacare requirements.
If we had Christian bloodbanks, you’d have a similar assurance of the lifestyle of the participants,
and subsequent reduced costs.
(Side note - obviously, the Christian/Jewish value system is inherently HEALTHIER and superior or these ministries wouldn’t be able to keep costs so low)