We kind of learned about that in Europe, the hard way, several times in XXth century (Italy, Germany, Russia, Soviet era invaded countries, Spain); some of us still having forgotten sadly.
A social credit system that is used to expedite what is normally the responsibility of law, debate, judgement - and can then be used to impose arbitrarial rules from the state (don't be fooled about that) _is_ totalitarian per nature. It is even more that because it relies on automation.
Don't use exceptionalism or pride to defend or justify such a system.