OK, here is a single instance: lots of people are concerned about glyphosate residues in food, and GMO technology is the only thing that allows those food plants to even survive the amount of glyphosate being sprayed on them.
If the product that had these modifications is perfectly safe without being sprayed with it, the science behind the creation of that GMO is still sound. The problem is what is being done to it after the fact.
Meaning, it being GMO itself is irrelevant and goes back to the business practices. Grouping that into an "Anti GMO" crusade just continues to further an anti-science narrative.