I enjoy modeling, and I think it's useful, interesting as well as respectable work. But a little humility would in science is always a good things.
Regardless, it's more useful to point to particular areas of uncertainty than to point to a general miasma of uncertainty around climate modeling as though nothing can be learned. It doesn't really move any conversations forward.
Just because we can't predict when an individual hurricane will occur doesn't mean that we can't predict "hurricane season".
edit: Apparently it's not even certain whether the Sun will engulf the Earth or not!