You obviously didn't bother to read what the parent said at all. Doubt you'll read what I say, but here I go feeding the troll.
It is very difficult to use embryonic stem cells in direct treatments. At best, it could only have half of your genetic makeup, and likely still suffer rejection issues. The point the parents however was making is that embryonic stem cells take almost 1/10th or some other extremely lower amount of time to "proof of concept" a treatment that can then move onto a real treatment where they extract your own adult cells, and work them into the treatment. The difference here is between embryonic vs adult is the blindingly fast speed the discoveries can be made.
It's the kind of thing that can make the ability to have the therapy on the market, and cleared by the FDA in your lifetime within reason. Whereas if they keep having to play with old cells that are not in their closest to most pristine condition it makes things so much harder. It's like drawing on a fresh piece of paper vs a piece of paper thats been used, abused, and erased more times than you can count. Theres going to be issues, and setbacks.
This all is really just another case of religion trying to stop an amazing set of discoveries from happening. Worked great during the dark ages where we as a culture were set so far back it's not funny, and the cycle continues to repeat itself. It's great how short human life, and memory is. These kind of remarks were the same kind that were used when invitro-fertilization was going on, which is where a very large chunk of these embryos are being sourced from. Doc makes a whole crapton of embryos, picks his choice that he thinks has the best chance of becoming a human being, and otherwise would send the rest off for destruction. It's not even that they are being created with this purpose, they were created without any intent for this use but something else, and are now the leftover scraps that would be discarded anyways. It's foolish to waste a few cells that are already there, at least with stem cell research they have some semblance of usefulness.
Oh, and one more thing, this kind of crap is whats going to get America, and a few other countries left in the dust. Doctors in countries with more concern for people alive, and kicking let this kind of thing go on because they see the purpose. They have the research, they have the people proficient in it, and they bring money to the country (like Thailand) because people can't get these amazing treatments in their homeland because of shortsightedness, and being blinded by the holy light. Plus something even worse happens because of this, these countries that do it, usually don't have allot of accountability so verifying the treatment is legitimate, or not something that should still be tested in chimps still can, and has caused many people great health problems.
These kind of arguments are like the head of PETA bitching that animal testing is horrible, but he sure as hell won't go without his diabetic medication which has it's history rooted in animal testing. You know if there was some life threatening ailment you or your child had, you would go for it. Wether it had it's roots in embryonic research or not. America will not decide for the world on this, the world will likely end up having to decide for America. That or religion will have to be expunged from politics forcibly.