Who, why, when, where, and how people reproduce have been sources of discussion and sharp disagreement for a few thousand years. Most ethical questions arise from someone's ability to control something. Because many of the niftier aspects of reproduction take place inside women, it's hard to separate moral, cultural, legal, religious, and physiologic aspects of reproduction from other women's issues. Then, look at the ruckus that effective birth control has caused in the 20 th century. Think of the benefits, responsibilities, hazards, advantages, and philosophical quandaries of women who can detach heterosexual intercourse from pregnancy.
Many ethical problems revolve around our dependence on a human incubator.
It depends on how fussy you are about the outcome. Long-term data on the karma of neonatal intensive care unit alumni don't resolve the question. This uncertainty will be traded for others once we perfect even the most rudimentary artificial uterus. You might as well tell dogs not to bark as tell a society not to adopt a device that gives more control over its children. However, I'm not sure I clearly see how they improve my relationships with parents, spouse, children.