Your assertion that it's "flat" is rather unconvincing after looking at that graph. It's clearly been rising relatively consistently. The dip for covid I think is especially understandable, and it's currently higher than it's ever been.
44% housing, 8% medicine, 14% food. I don't see how these number are manipulated to the point of malicious data picking. They also publish their methodology.
Maybe your personal expenses are not reflected by the CPI, but you can see for yourself: https://www.bls.gov/cpi/tables/relative-importance/2025.htm
44% housing, 8% medicine, 14% food. I don't see how these number are manipulated to the point of malicious data picking. They also publish their methodology.