This is false. Especially false if you didn't have electricity costs like I did. That link you provided requires a paid subscription. I was able to spend money on hardware once, and mine eth all year long.
I get you're a bear and thats your shtick on here...
You are saying fact as pointed here
https://www.statista.com/statistics/1201657/ethereum-mining-profitability/ is false to conform to your narrative and that is when I leave the discussion, have a good day.
Unfortunately, you're lumping all situations into one general assumption. Its okay. If you have a 1 time cost of the equipment and no power cost, then you're incorrect. Have a nice day.