Ok I did a search and now I'm going to re-post what I posted to you a few pages back on that specific point....which you acted as if I had never replied to.
I'm only going to re-post part of the post (since it was a long post) and I'll link to the complete post.
In regard to your statement about "rendering fat from a live animal"...
When discussing that passage, first century Jewish historian Josephus wrote: “But Abel brought milk.” In the phrase ‘the firstborn of the fat of his flock’ the word translated "fat" in Hebrew is ֵcheleb, which is identical to the Hebrew word for "milk" ָ(chalab), but with different vowels. Since vowels were not added to the Hebrew alphabet until hundreds of years after Josephus, it is very likely that the original word describing Abel’s gift was milk rather than fat.
If so, then Abel presented to God a firstborn baby lamb nursing milk from the baby’s mother. Which makes much more sense for numerous reasons. Especially since that was long before animal sacrifice was even introduced in the bible, and - as I've said many times before - animal sacrifice was not God's idea, it has pagan origins.
And
here's the link to the complete post.
As for the other points you brought up, most of which have already been addressed, maybe later when I have more time I will reiterate those too. I know that this thread has been fast-moving so maybe you (and not just you, me too) have simply missed some posts. But if you're not sure if something was addressed, then just ask. But please don't continue to re-state points that have already been addressed as if they are settled objective truths while at the same time completely ignoring the posts that address those claims... some of which have been lengthy, detailed posts.