The discovery of not being able to afford groceries is organic and real. The attribution of it to Biden is organic but mistaken. Regular people confuse correlation with causation.
You are projecting your data-driven decision making to regular people who don't do that. Depending on how neurodivergent you are, you will eventually learn that you can't model how typical people think based on how you think. People aren't looking at hard numbers. People try to find patterns in what they experience.