Sure, we should punish crime but never solving the root problem and taking a "hardline" approach towards the symptoms feels good. But, it puts us in a perpetual state of law enforcement and anxiety about crime.
Agencies like the DEA should be abolished and possession/use of drugs should not equal prison time or anything on your record. Of course, things like driving impaired are still punished because you're endangering others.
College should not be expensive or put you into debt for decades. In the US, we need a general cultural shift away from hyper individualism and unregulated capitalism.
Sweden's welfare state is a left wing dream come true, however the bad news for the left is that it empirically disproves every left wing idea about crime and society.