Lighter wheels accelerate faster, we already agree on that right?
They handle better because of the reduced gyroscopic effect. You can notice this by simply putting on slightly lighter tires!
They stop quicker for the same reason they accelerate quicker.
They cause your suspension to work more efficiently because the suspensions job is to keep the wheel in contact with the ground. The wheel is forever being bounced up and down by rocks/roots/bumps etc. The heavier the wheel, the more work the suspension has to do to keep in contact with the ground. The less unsprung weight it has to deal with, the better it can do its job.
All this combined makes saving weight on your wheels worth while.
Not really much to argue about is there?
I already explained on the last page young grasshopper.
You don’t even have an argument, I really don’t see why you are still going on, you are just making yourself look silly.
Edit: Thanks you TJ, finally someone with some brain power.