More profitable how? There are only 21 million coins to mine. Make mining more efficient maybe? But what's more efficient than ASICs?
ASICs mean a more centralized world of BTC where a few manufacturers and a few pools control all the income. What is so great about that? Satoshi designed it so anyone could mine and anyone could earn BTC.
They don't
"control all the income." The only power miners have is to decide which transactions to publish. They are rationally incentivized by block rewards to do so
honestly rather than to censor or reorg out transactions.
That's how Bitcoin is supposed to work,
and that's how it still works today.
Satoshi's lack of foresight about the proliferation of ASICs and mining pools ≠ adequate reason to change Bitcoin's design. It's not broken; don't try to fix it.