Also, I believe the profit made from producing dimes, quarters, halves and dollar coins more than offsets the cost of producing cents and nickels.

Not to mention the US Mints outrageous price increases for numismatic offerings to collectors. For example, an uncirculated coin set, in base metals, with a face value of $5.82 was $33.25 last year and is now $124.50: https://www.usmint.gov/uncirculated-coin-set-2026-26RJ.html