correct. I am pointing to the following what you wrote:

You can thank the Muslims for all the lost knowledge because they burned the library to the ground that held all the secrets to the past when they burned Alexandria.

Your comment was incomplete, or better said, not correct. During the Christian Age, during Hypathia's involvement, there still was a lot of ancient knowledge available.

Theon is best remembered for the part he played in the preservation of Euclid’s Elements, but he also wrote extensively, commenting on Ptolemy’s Almagest and Handy Tables. Hypatia continued his program, which was essentially a determined effort to preserve the Greek mathematical and astronomical heritage in extremely difficult times. She is credited with commentaries on Apollonius of Perga’s Conics (geometry) and Diophantus of Alexandria’s Arithmetic (number theory), as well as an astronomical table (possibly a revised version of Book III of her father’s commentary on the Almagest). These works, the only ones she is listed as having written, have been lost, although there have been attempts to reconstruct aspects of them. In producing her commentaries on Apollonius and Diophantus, she was pushing the program initiated by her father into more recent and more difficult areas.

However, the religiously induced furor during that time (4th century) broke the camels back. Muslims of the 7th century finished it off.

My comment is not about guilt, but about the succession of destruction.

By the same token, we could point to Persian (and by the 9th century were predominantly Muslim) scholars who have preserved, or even rediscovered certain ancient knowledge, or moved even further.

There was in the 11th century a Persian scholar who wrote a paper on the distribution and conditions of certain plants. When comparing it to Darwin's Origin of species, there are significant overlapping ideas. Given the conditions of the time this Muslim Scholar lived in, he simply concluded, meaning, ended, his book with the notion that God had done it, whereas logic would have dictated an evolutionary proposition.

And why not, as everything revolves around frequency.

I could also point the the many books, transcribed into latin from Arabic versions of older books, preserved by those less religiously orthodox.

So, there is that. I do not wish to equate then living Christians, or Muslims for that matter, with those living now, as for every living man, the question of appreciation of knowledge and wisdom is key. Zealotry often comes into the fray to wreak havoc.