It is your personal choice to consume goods packaged in plastic. If you, as a consumer, continue to eat pre-packaged peaches and apple slices rather than just eating apples and peaches, you are consciously adding to the known problem. Blaming "someone else" doesn't change the decision that you, as an autonomous individual, have made.
Your stance uses the same logic that people use to excuse their impact on climate change. People who are generating trash (specifically plastic trash) are at fault for worsening the problem of excessive plastic trash, full stop. The same way that burning coal worsens the climate problem. The justification that the problem is so big that individuals can't (or shouldn't) change their behaviors is a coping mechanism. It's borderline nihilistic.