Why doesn't anyone understand bipolar?

Sorry for the rant, but everyday, I have patients, therapists, even other psychiatrists call their patients "bipolar", without any semblance of manic symptoms, at all. It's all just "mood swings", usually explained by cluster b disorders, but they don't want to tell their patients they have borderline PD, so they'll just say they have bipolar. Then they get placed on all kinds of ridiculous med regimens (mood stabilizer plus antidepressant), no true therapeutic treatment, and patient complains that they don't feel any better and they want new meds. What's amazing when I speak to the referring party, they'll argue with me that they actually do have bipolar, but again, no manic symptoms.