yah, you said it, the problem is not the black ppl, or that they are allegedly more aggressive. it is just having less chances, and that by far. actually I didn't know the relation between hell/heaven to crime rates. yet I wouldn't overestimate this statistics, since it's very difficult to interpret. possibly it has nothing to do with each other. however, since christian church does not include something like "hell", this argument is not valid for christians (I don't know about other religions). the culture argument rather applies to a different understand of "crime" in different culture, other than that I don't see a reason, why culture should have anything to do with crime rates.
I don't think BLM is flawed at all! It is completely correct, or do you think black life does not matter? you just make a big mistake: you mix up those rioters with the BLM movement. during many demonstrations you will always find ppl who just go there for rioting, and don't care for the actual movement itself. just look at the "yellow vest" movement in France, which was initiated peacefully, just some stupid ppl started rioting. these ppl are disgusting, and are probably not very educated. Yet, BLM stands for equality and that's what I believe in!