My interpretation is that God created Adam and Eve to not be sinful creatures. Created in God's own image. Therefore, of all beings and creation we are Gods favorite. but God's favorite angel Lucifer thought himself better to God and tricked Eve into eating the forbidden fruit which gave man free will to sin. Satanists are grateful to Lucifer and consider it a gift. God then gave man teachings or law to distinguish righteousness from sin.

lucifer rebels against God and takes a third of the legion of angels with him. this is how satan also has so many demons.

I do not know whether the Bible actually calls it the "fall of man." That may just be a misnomer. We are promised eternal salvation through Jesus Christ. So, No, we are not eternally damned.

The way scientists distinguish blood types is superficial and irrelevant. That means that the characteristics of human blood they attempt to use to distinguish man from man are insignificant.