The U.N. is a bigger murderer than the Syrian Government

Isn't the U.N.as a body, a bigger murderer, than the syrian government?
Thousands of Syrians are being killed by the government in Syria and all the U.N. can do, is debate and watch!
I thought that the U.N. was established to protect people globally against such horrors. Obviously, I am wrong!
They did this in the Gulf war and numerous other conflicts.