What do you think of the genetic engineering on human embryos?

So long story short it's like a build your baby type of thing where scientists tweak and manipulate, add or remove specific DNA cells into sperm cells or whatnot to make the baby come out with specific features, such as change of eye color and stuff which if I'm not mistaken, this technology is being studied to prevent diseases and stuff because i think they can just delete it or someshit, kinda weird shit in my opinion.
What do you think of the genetic engineering on human embryos?
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