I think part of the problem is that we're putting plastic into the environment and that's going into the fruit, into the veg, and into the animals, and those are going into us.
No matter how much we reduce plastic around our food we're still ingesting plastic polluting the environment that the plants and animals are not avoiding. And more and more of that plastic is polluting that environment meaning more of it is inevitably going into us.
The only way this is reversed is by reversing plastic in the environment.