if someone hits you with their car by accident, they’ll stop and run you over to finish you off,

That is a deliberate condemnation of the Chinese peoples themselves. That is not an ideological statement, that is a statement clearly portraying the Chinese as homicidal maniacs who have no more moral scruples but to 'finish you off' for their own gain if you were hurt. It is a targeted racist 'joke'. That is not 'too sophisticated'. it is blatant.