But you could just as accurately say that a ritual that has come to save millions of lives had become a Biblical ritual.
The only problem is that all evidence for that assumption is lacking.
No it isn't. The Egyptians were doing circumcisions before the Jews were. They've found wall carvings showing it and they've found mummies that were circumcised.
Another problem is that the Biblical laws are unique for the Bible. If you compare the Biblical laws with the contemporary pagan laws, then you see a tremendous difference.
I'm not talking about the contemporaries. I'm talking about the predecessors.
The Biblical laws are enormous life savers. The pagan medical remedies would help you sooner into you grave.
There are Biblical laws that would help you sooner into the grave, too. They've been pointed out to you in this thread.
No other holy book or even medical book prescribes circumcision.
Only Egypt had it for a while, because the Israelites lived for centuries in Egypt, and forced circumcision upon the Egyptians.
No, the Jews learned circumcision from the Egyptians. You just want to make your religion out to be better than it is.
At least we agree on the fact that the Biblical laws are very beneficial .
Not all of them. Some of them, sure. But that's because if you know something is beneficial, then you might as well write it down.
And why did the Jews figure out what was very beneficial, like circumcision on the eight day, and could no other culture figure out what was so beneficial?
The Egyptians figured it out before the Jews did.
Divine intervention.
That's just your wishful thinking. And the evidence shows that if it was divine intervention, then it was for the Egyptians rather than the Jews.