A sovereign Bitcoin rollup with a validating bridge to/from Ethereum to the rollup and inheriting the DA properties of Bitcoin.

This is what we need to do, until we can make classic Bitcoin rollups a thing (I have faith we can straighten out the fuckstorm of Bitcoin).

People may not get it, but we need one cryptoeconomic backbone built on PoW. The world would genuinely not be economically-ready for a Bitcoin that broke its irrational conservative boundaries

How are the DA properties of Bitcoin greater than those of Ethereum?
It can only provide probabilistic finality with much longer times for reasonable finality assurance.
Also, as issuance keeps dropping if fees eventually surpass issuance a new can of worms opens up in the form of reorgs to steal fees.