By your logic, Sessions should be directing police officers everywhere to harshly enforce all traffic signs, to harshly enforce jay walking laws, and to go bust

By your logic, Sessions should be directing police officers everywhere to harshly enforce all traffic signs, to harshly enforce jay walking laws, and to go bust every small poker game for illegal gambling. Enforcing all our laws with equal effort is a massive waste of resources. Plus, we still have a lot of fairly crazy old laws on the books that no one cares to enforce. It took until 2003 for the Supreme Court to say laws against sodomy were illegal. We don't want to rely on congress to choose which laws to enforce, we want to rely on smart and empathetic prosecutors. Unfortunately Sessions does not seem very empathetic.