Yooval,
We are clearly not going to come to a final conclusion at this stage.
However, since you are saying that it is people who invented the commandments of Judaism then I think that it is worth while to contemplate as to what was their motivation for instituting 613 commandments and how did these commandments came to be accepted by the Jewish people throughout a period of 3500 years.
Even if you don't believe in anything the question is academically relevant.

It's not a question of whether there are 613 or 300. The question is fundametal. Why were these commandments instituted in the first place and how did they come to be accepted for 3500 years by the Jewish people.

Yooval,
This is a simple question. If it was G-D that gave us those commandments then there is no problem. However, if it was people who invented those commandments then why would these people invent 613 commandment, most of which ''don't make sense'' and then succeed in making the Jewish people accept them for 3500 years?

For the last time, the people who worship monkeys and cows are the same as those that worship Jesus. They just worship. These people have no commandments and they are free to live their life any way they like, as long as they don't break any laws that might get them in jail.

In that respect, Judaism is different from ALL OTHER monotheistic religions. The definition of monotheism may include the worship of a single G-D but it may also include the worship of a single monkey or a single lunatic who may think and say that he is the son of G-D. Judaism however has Mitzvoth and in that respect there is not a single parallel to it in Man's history.

Yooval,
THEY don't have Mitzvoth.

Anyway, I think I said all that I wanted to say at this point.