Wow...
Where to begin? I will start with Jean M. Auel. I have read the series, many many times. My daughter's name is Ayla. I met Ms. Auel in Portland, OR when I lived there. Not that this makes me an expert in Neanderthal, but Jean M. Auel is not an archaeologist. She was a few other things before she was an author, but has no formal training in anthropology or archeology. She does do a lot of research, travel, and studying for her books, but she will admit that things that are in the book are fictional, and there is even a mention in the Wiki article about her that her portrayal of the Neanderthals' hand signaling as a first language may have been incorrect, because of the 1983 finding of the Hyoid bone in Neanderthal, which facilitated more vocal abilities than previously thought.
You can not use a FICTIONAL novel for historical education. The FICTIONAL account of the Neanderthals' religion as a 'mother' of the earth, a Donii, was all created in Ms. Auel's mind. These ideas are based on a carving found in Austria, dating back to around 22,000 BC, known as Venus of Willendorf. This is her:

The statue has no face, which makes some 'sciency' people believe she may have been representative of a universal mother. More statues were found, but most of the female statues that seem to fit with the universal mother are from 3000 BC and earlier, long after the Neanderthals were gone.
As far as tools and weapons, well yeah. I don't know of anyone who disputes that. 'Sciency' people have been saying Neanderthals could make tools since they found Neanderthals. That's part of the reason they weren't considered just another ape. They had the ability to make tools and adapt to what was around them faster.
I understand how awesome the Clan of the Cave Bear series is. Believe me, I read the first book when I was 13 years old, I waited for the Shelters of Stone for 10 years, when it finally came out, I CRIED like a baby at Books a Million. They are wonderful stories, but they are not history. When I was younger, I wanted to believe them too, but instead of relying on fiction, I actually studied the facts about Neanderthals. You should too.
Until then, you have really no leg to stand on to come into a forum of mostly educated adults and start attacking people that know more than you do. It only serves to make you sound like an uneducated prepubescent trouble maker.
I suggest opening an actual 'sciency' book before you try that again.