Yeah America has all the moral debates about genetics and experiments with embryos. But the bottom line is other countries are going to move forward no matter what America does.
This isn't really a problem. America can just wait for somebody else to take the risk and show the benefit, and then popular opinion would change. And we have the back-bench to develop these technologies once somebody has shown it possible. note that many parts of the US enthusiastically adopted stem cell technology ( https://www.cirm.ca.gov/about-cirm/history ) but unfortunately federal-level policies set by conserv…
The opposition was/is entirely to the death of embryos in order to obtain some stem cells for research. It's not as if it's some anti-science policy.
It's simply a continuation of anti-abortion politics, which a lot of people feel very strongly about and invokes a ton of ethical questions. As long as there can be a perception that someone was killed in order to provide the stem cells to save someone else, that's not going to go away.
Find ways to research stem cells without doing that and all of those concerns vanish.