Stablecoins as a euphemism for full-reserve banking
In a world where fully-reserved digital stablecoins reign supreme banks would have to pre-fund (by liquidating assets first), increasing the relative amount of liquid cash float the whole system needs to operate. The cash float being what it is (mostly government-debt backed), that amounts to even greater sums of guaranteed funding for the government instead of the private sector. That inevitably crowds out private investment simply because of who controls go-to “potential claims” on the economy.