Your argument here is based around one view of UN SC 1441.
One side says it does not authorize military action, the other side says it does.
In theory the threat of "serious consequences" is mutually understood by all members to mean "military action".
At least until it is inconvenient to understand that.
Why do politicians speak and write ambiguously? Why didn't they just write "military action" into 1441? Because they are politicians and they never commit.
Which is why the UN didn't do anything effective in Bosnia.
And, lest anyone forget, I too was against initiating action against Iraq without a clear UN SC resolution to do so.
It's just that I can also see where US/UK/Australia/Spain/et al felt they had UN SC justification to act. Clearly, Iraq has not complied with the terms of the GW 1 surrender.
I'm not going to be a bit sorry to see Saddam out of power either. I just don't think acting w/o "better" clear SC support is going to be in the long term best interest of the US.