Sorry to hear about your experience.
But I also think you are probably wasting your time offering such detailed critique to people who don't appreciate it (or maybe haven't even asked for it). There are too many bad/mediocre photographs out there to get worked up about it. If someone comes along and asks for critique it is something else entirely, but I would still be careful about how much time/personal involvement you want dedicate to it. If you care about the craft and want to transmit this, maybe it's more effective to offer teaching to interested people, or produce some tutorials? Leading by example will reach those people who want to learn something and improve their craft.