No they aren’t. The Urban CPI put out by the BLS is up less than 3% from last year.
Many agricultural staples are flat or down over the last few years, despite monthly fluctuations. Corn was $3.56 a bushel in April 2016 and $3.58 a bushel in April 2018. It was over $4 a bushel in 2014.
The working class drives cars, buys food, watches TVs, and has cell phones. Prices overall have not been going up much for most working class consumers. Just a fact. Don’t trust me. Check out the data on the links I provided or look it up on your own.