“CDP stablecoins can’t scale”

It’s worth noting that 3/4 of USD money supply is CDP-generated dollars.
Chains that lack CDP stables that are at minimum integrated with, and at best fungible with, other stables and lending markets deprive themselves of an important form of stimulus.
Just as when I buy a Tbill in the real world, when I deposit USDC into a lending protocol, there is no expansion of the monetary base. Every dollar present on a chain has to be imported.
CDP stablecoins have not taken off on any chain besides Ethereum (and they’re stagnant even then).
This indicates a role for chains to find ways to unify stablecoins through capital controls (heavy handed) or regulatory incentives (lighter touch). But laissez faire has failed so far to evolve money creation.
Aave is best suited to do this on most chains, as they already have 1:1 aTokens for deposits. But they chose to pursue GHO rather than push their existing aUSDC and aUSDT install base as their stablecoin of choice, which meant the latter never got integrations to make the money or near-money.
Chains have lost the luxury of being completely hands off of stablecoin policy - in fact, they have chosen a policy by avoiding any action beyond asking Tether and Circle to set up minting on their chain.
Particularly now, the ability to stimulate a chain economy through money creation would be a major competitive advantage.