To my knowledge stem cell research is clicking along just fine, and I can guarantee you that certain other countries (looking at you here China) don't give Shit One about the ethical/religious hangups around it in the West.
From what I've read (and I'd love to be corrected here because I really don't know deeply about this), the progress on actually creating replacement organs and so forth is the case simply because it's really hard to achieve so far. There's too much we just don't know or at least don't know how to make work in applied practice.
From what I've read (and I'd love to be corrected here because I really don't know deeply about this), the progress on actually creating replacement organs and so forth is the case simply because it's really hard to achieve so far. There's too much we just don't know or at least don't know how to make work in applied practice.