Apparently the only people who really have an issue with stem cell research are Catholics and Christian fundies. That’s a pretty seriously small minority. Islam, Hinduism, and Judaism have no issues with using stem cells for research purposes, as the research occurs to cells before any of those belief systems consider them “alive”. Only Catholics and fundamentalists/cultists believe in personhood at conception/fertilization.
Don’t ever let them paint this issue as one where “religions” believe using stem cells is wrong! The vast majority of people in the world believe using stem cells to research healing is fine.