Besides the issue of relegating tendies-eaters to permanent 2nd class citizenship by keeping them off public transportation (which is evil and stupid IMHO), the obvious truth is that China won't use Social Credit to better their people. They will use it to make them even more servile and insectoid than they already are. 

The way to get rid of the druggies, dregs, NEETs etc. is to make getting snipped a requirement for getting welfare. Plus offer cash payments for anyone who gets snipped, no questions asked. This program should be completely non-discriminatory.

And if the Jews implement social credit in the West, you can be sure that the Church of the Sacred Nigger will become the enforced state religion and Whitey will be reduced to trash picking and eating bugs. That would be the plan anyway. Hopefully, collapse and revolution would stop it.