I do agree with genetic engineering, although I disagree with the latter statement made in your post.
Animals are irrational and inferior to humans, and I feel it is reasonable to use animal testing in order to benefit humans.
In theory and in argument, I would argue for genetic engineering. It may well have the potential to screen out various illnesses and conditions, relieving many people from certain situations which they would likely be otherwise chained by, as well as likely being highly beneficial to the economy in general.
However, out of theory and argument, introduction of genetic engineering is not something I would like to see. I may, however, have a totally different viewpoint were I the father of an autistic child who has been told genetic engineering could release his son from autism.