[tzs]

You are implicitly assuming that either it is not possible to use GMO to produce something harmful that would not be impossible or much harder to produce without GMO, or that if it is possible then the commercial interests that decide how to apply GMO will refrain from doing so.

The first assumption is scientifically incorrect. GMO is just another tool for altering organisms. Whether those alterations are good or bad depends on how the tool is used. It does allow a wider range of alterations than traditional techniques, and is faster, so enlarged both the set of good alterations possible and the set of bad alterations possible.

History, or a trip to the grocery store, suggests that the second assumption is questionable.

As Uncle Ben said, with great power comes great responsibility. GMO is great power, but will the people who wield that power do so responsibly? That is not a science question.