No, it's morally wrong, no matter one's opinion. Pro-stem cell research people say it is morally right. The only protection for human life comes from an objective source of truth that politicians and polls cannot change.
We are already growing life to destroy it. It's called abortion. More than 30 million babies have been destroyed in this country since 1973, primarily for the convenience of the inconveniently pregnant woman. Having tolerated abortion, we are quite predictably grappling now with cloning. But we do not have the moral foundation to prohibit it.
If there is no God, or if He has nothing to say about life, or if He does, but we ignore Him, there is no moral principle to which we can cling to prohibit additional challenges to life.