If someone calls themselves a "Christian" then they are, by choice, bound to obey Christ.
Christ poured out the holy spirit on the disciples in Jerusalem who wrote:
Acts 15:28,29
"For the holy spirit and we ourselves have favored adding no further burden to you except these necessary things: to keep abstaining from things sacrificed to idols, from blood, from what is strangled, and from sexual immorality. If you carefully keep yourselves from these things, you will prosper. Good health to you!β
It was repeated twice for emphasis: "from what is strangled" (congealed blood) and "from blood" (any blood, even fractions).
When the GB/FDS says "blood fractions are acceptable" the GB/FDS is antichrist.
White cells in milk is not the "blood" talked about here. Leftover blood in meat that's been properly bled is not what is talked about here. The Bible shows God is fine with people eating meat and drinking milk.
It's not normal to drink blood or shove it in your body some other way. Just because people can do it doesn't mean they should. It's just as nasty as immorality or idolatry. The GB/FDS have misled their flocks by saying "it's a conscience matter" to take blood fractions. Just like everything else, for them it's about the $$$ and control instead of obedience to God and Christ. They will get their judgment for misleading the flocks so heinously.
On our own, we're all as good as dead. No one can live forever on their own. Only Jesus blood can do that, "save a life". To be a "Christian" means to follow Christ.
"So Jesus said to them: βMost truly I say to you, unless you eat the flesh of the Son of man and drink his blood, you have no life in yourselves."" (John 6:53)