i disagree that evolution has stopped. my observation is that the human's physical size has been reducing throughout the years and the mental side has grown.

and there is no proof that when human first appear there is inbreeding.

as for the weak genes or strong genes selection through selective breeding.....how do you define which gene's are strong or weak ? strong gene's might be considered weak in certain environmental or sociological conditions and vice versa.

as for the rate of evolution, it depends largely on the stability of the genes on the chromosome and the rate of reproduction.

we as humans do have the choice to select or steer the direction of evolution. for now there's genetic screening for pathology at the level of sperm and ovum before they fuse.

we just scratched the surface of what is possible in genetics, maybe in the future we might have the choice to select the traits we want.