As you stated, people don't want crypto systems to seamlessly cover all of society. So, we can reasonably expect other systems to exist and also some crypto systems to exist. I have a cautious eye towards crypto, but a realistic future includes people using crypto for some things and using interpersonal agreements for other things.
What people want is incompatible with cryptocurrencies existing.
Maybe some use will be accepted, just like some level of murder is accepted. We sacrifice some lives for the benefit of not living in another type of dystopia.
But no, there's no harmony there. There is no right amount of AIDS in your blood.
