The question is why would you want an unprofitable miner to exist? If you can't compete, you must die and those ASICs will move to operations where they can be run efficiently

If large miners do die out, miners with smaller operations or a lower cost basis have a better chance netting a block and when they do that block reward offers them a greater extension in runaway.

The large miners were always taking a calculated risk with the amount of capex they deployed and now with this latest halving miners are entering a new phase now, where they're even buying Bitcoin off the market because its a more efficient use of their capital and they can sell the volitilty to the market via debt and stock issuance.