Eventually you'll reach a stopping point. The believers go a step behind the nonbelievers, a step into the unseen, that's all. Up until the beginning of the universe we're all in agreement because things exist, lol. And there's no contradiction in the definitions I'm using, that's just semantics and often due to the Frankenstein monster of inconsistencies that's Roman Catholicism and everything that came from it. You have to think about it without labels, the way the Greek philosophers did, and assume corruption in much of the remaining scriptures. And blood sacrifices? Are you referring to Abraham? God doesn't require blood, just faith and acts, we're not Aztecs! But if you believe in the unseen and in a judgment post death, you believe in life after death, and if you do and God Himself asks you to sacrifice your child, is it even a negative or are you, with 100% certainty, sending your kid to Heaven? Not that it's an easy pill to swallow, there's a reason Abraham's name is known today, but that's not because BLOOD FOR THE BLOOD GOD, but it fits as an acknowledgement of our ephemeral nature and 'meaningless existence' and a test of faith (everyone dies in the end too...).
If you ever wanna talk about it in earnest, I'm up for a call. These convos are not very productive in this format, lol.