The most profitable bitcoins I ever mined, were the ones I mined when it was unprofitable to do so.
You'da been richer if you bought coin back then, instead of mining it.
This. Maybe an idealist with a three-figure energy bill was prepared to mine at a loss back then, but a professional mining farm with a six-figure bill is not, lest they want to end up like CoinTerra. This is survival of the fittest, and trying to defy it is futile.