Should editing human embryos be allowed?

You're making the same leap again: you're moving from "the future person cannot consent" to "therefore nobody has the right to make the decision." That conclusion doesn't follow. A child cannot consent to countless irreversible medical decisions made before they are born, yet we don't consider those decisions inherently illegitimate. The relevant question is whether the decision is made for the person's legitimate benefit, with an acceptable level of risk, not whether the person could sign a consent form before birth. You also say that even 99.999% safety leaves a risk for someone who had no say. But that argument proves far too much. Almost every medical intervention involving a child involves risk imposed on someone who cannot independently consent. The existence of risk creates a duty to justify and minimize it; it does not create an automatic prohibition. And you're treating "benefit" as if it inevitably means a slippery slope from curing disease to designing people however we want. That's not an argument; it's a prediction. We can establish boundaries: therapeutic interventions, non-therapeutic enhancements, coercion, safety thresholds, and heritable changes can all be regulated differently. The fact that one category might lead politically to another does not logically prove that the first category is wrong. Most importantly, you still haven't established your absolute principle. You say "not now, not in a hundred years." Why exactly? Suppose, hypothetically, that scientists eventually understand the relevant genes completely, the modification is demonstrated to have negligible risk, it causes no harm to descendants, the person is expected to benefit substantially, and there is no coercion. What morally relevant reason remains for an absolute ban? If your answer is simply "they didn't consent," then you're confusing lack of consent with lack of justification. A person can be unable to consent and a decision can still be justified on their behalf. So your argument successfully supports caution, extremely high safety standards, and strict regulation. It does not establish the much stronger claim that embryo editing should never be permitted under any circumstances. That's the claim you still need to prove.

I agree that preventing a child from being born with a serious disease sounds like a good goal, and I understand why that would make embryo editing seem worth it. But I don't think having a good goal automatically makes the method safe or ethical. The problem is that editing an embryo can create changes that we may not fully understand, and those changes could potentially affect that person and future generations. There are also other ways scientists can work toward preventing or treating genetic diseases without immediately making permanent changes to human embryos. I think we should continue researching these treatments, but until we know much more about the long-term risks and have strong ethical protections, allowing embryo editing could create problems that we can't undo. Helping children is important, but we also have to make sure that the solution doesn't create new risks for them. Imagine a world where scientists could change the DNA of a human baby before it was even born. At first, this might sound like an amazing way to prevent diseases, but it also raises serious ethical questions about how far humans should go in changing future generations. I believe editing human embryos should not be allowed because the risks are not fully understood, the changes could be passed down to future generations who cannot consent, and it could lead to people using the technology to choose traits rather than simply prevent serious diseases. Human life should not become an experiment where mistakes could affect not only one person, but potentially their children and grandchildren. For these reasons, human embryo editing should remain prohibited until society can be certain that it is safe, ethical, and properly regulated. One major reason human embryo editing should not be allowed is that scientists do not yet know all of the possible long-term effects. Changing one part of DNA could potentially affect other parts of a person's development in ways that are difficult to predict. If an error occurs during embryo editing, that change could become a permanent part of the person's genetic makeup and could potentially be passed on to their future children. Because of this, the consequences could extend far beyond the original experiment. When the risks involve an entire person's future and possibly future generations, we should be extremely cautious. Another concern is that embryo editing could eventually go beyond treating serious diseases. If the technology becomes widely available, some parents might want to use it to influence traits such as height, appearance, athletic ability, or intelligence. This could create pressure for parents to genetically modify their children simply because they want them to meet certain expectations. It could also create greater inequality if only wealthy families could afford these technologies. Society could end up divided between people who can access genetic enhancements and those who cannot. Children should not have to be designed to meet a certain standard before they are even born. Finally, the people being genetically changed cannot give their own consent. An embryo cannot decide whether it wants its DNA altered or whether it accepts the possible risks. Once those changes are made, the person has to live with the consequences. That is why I believe the safest and most ethical choice is to continue researching genetic medicine while keeping human embryo editing prohibited for now. Scientific progress is important, but just because we have the ability to change something does not automatically mean we should. When the potential consequences could affect someone's entire life and future generations, protecting human life and preventing irreversible harm should come first.