Using tech to correct is one thing. Using tools to increase producticity is another. Using either to attempt to transcend our nature is yet another thing (named hubris). It can be hard to draw lines between them, and sometimes it's more about the intent than the tool or tech itself.

I believe in such a thing as human nature, that it was given, and that whenever we try to transgress the natural order, that hubris is met with retribution and tragedy. This is one of the more important lessons, I believe, not only from Graeco-Roman, but also Judeo-Chrsitian, heritage--which is to say, from Western Civilazation as a whole.

Transhumanism, as I understand it, is by definition the goal of crossing the line of what it means to be human--because it's "not enough."