How do Protestants counteract the Witnesses stance on Blood Transfusions?

As discussed in https://christianity.stackexchange.com/questions/65991/christian-beliefs-around-blood-transfusions Jehovah's Witnesses refuse blood transfusions for reasons in scripture. I have trouble with the idea. What about the sanctity of life with scriptures such as: Deuteronomy 30:19 (ESV) >I call heaven and earth to witness against you today, that I have set before you life and death, blessing and curse. Therefore choose life, that you and your offspring may live How do Protestants (Church of England for example) counteract the Witnesses stance on Blood Transfusions?