Dumpster divers
What's the general consensus on them in most areas? I try to argue that it's trespassing 1) because they're in areas not generally accessible to the general retail traffic. 2) they're violating scavenging ordinances in most places which they counter by trying to use a caselaw out of California (Lee v Greenwood) to say what they're doing isn't illegal. 3) that the property is owned/leased by a private company and if you're not there to do retail business you're loitering/trespassing etc.
Am I wrong in my thinking and need to correct?