That's harsh! It's as I've said before, it's all the pre-meds and MS1-2's. They are all practicing theoretical medicine at this point (ie classroom). Or in other words, nothing is yet real. They dream about being these big shot doctors that can treat and do everything. However, after progressing to the clinical setting, they quickly realize that they know nothing and that just learning one aspect of medicine is extremely difficult. They humble themselves and go on to do fine. Let me stress that I believe these people to be the minority though. I have many good friends that are MD's and DO's and are not like this at all (which I believe to be the majority).
As for the whole "physician" title, people can argue all they want but state laws and hospitals recognize pods as physicians. For example, DVA hospitals define pods as physicians and group them with surgical services. There is a big thing going on in Des Moines right now because three of the major hospitals don't have pods listed as physicians (pods can't admit) so the hospitals are now changing the definition to include pods.
As I've gone into the clinics/hospitals, I have noticed the mutual respect that docs have for one another, whether they be MD/DO/DPM. That is because, as I said before, you quickly realize that you are not trained to do a lot of things that they can do and they can't do a lot of what you can.
But in the meantime, you will always have those few insecure students that like to point out that, in their little minds, their training is more difficult, their life is harder, they are smarter, etc. But then again, you have this type of person in EVERY profession.