I saw the following list of problems with the US legal and law enforcement system, which taken individually may not appear to be major issues in terms of it being a “systematically unjust” country, but which taken together do tend to suggest there is a big problem. This is mirrored to a certain extent in other countries, such as here in the UK.
qualified immunity;
LEO unions;
LEO militarization;
inadequate civilian oversight;
plea bargains;
victimless criminal statues (e.g. drugs, sex-work, immigration);
occupational licensing;
civil asset forfeiture;
eminent domain (esp in re gentrification);
unaccountable fines & fees, and quota-based policing;
private prisons;
FISA Courts; and
no-knock warrants.
That is a good list for radical classical liberals and small-government conservatives to get to deal with.