This is a very good, but often overlooked point.
However the other part of the equation isn't working either. The wealth gap in America is growing, and the proportionate cost of housing and groceries has been rising for decades.
One of the reasons North Americans are "addicted" to cheap products from overseas is because they now spend so much of their income on groceries and housing, there is not enough left over to buy a great pair of shoes made in New England.
I agree, the cost of living is higher than the standard of living. I find myself putting more things back in the grocery store, I can afford those items but I feel guilty buying those items because I feel it's not worth the cost. I think some of that in me comes from hearing my grandmother talk about the Depression.
I also think that growing up eating the fish we caught, the game we shot and the vegetables that we grew in our own garden has an influence on me as well.
Funny thing, she lived just short of her 100th birthday and had become a lifelong pack rat. My Grandfather on the other side however grew up in the NC mountains. If you were to ask him about the Depression, he would have told you that they didn't know anything about it, that was for people down in the city.
If they had chickens and corn they would trade someone up or down the mountain for beef, pork, beans, molasses and so on.
As much as I hate to, I have to say that Biden did have a point about one thing, shrinkflation. Not that we didn't also have inflation, but we all know that a bag of chips keeps getting lighter. Same goes for things like a tomahawk ribeye, great marketing plan there. You can feel like a caveman while you pay extra money for a worthless rib bone.
That reminds me, that Grandmother that grew up in the Depression always had a can of Charles Chips at her house back in the day!