Why is talking about stigma never okay?

[De Leonist]

I realize I'm harping on about this again but here is what I don't get. Why is it never okay to talk about Stigma? I know we can talk about it here and everything but to actually mention in real life it's as if it's taboo. The reason why this bothers me so much is that plenty of other marginalized groups actually have recognition of their struggles amongst the population to some extent or another. But we can't talk about it. We can't mention it. Yes in some limited capacity we can talk about it in little clubs at say a university or maybe in a real life support group. But as a whole our voices are generally left out of the public discourse. Granted unlike many other marginalized groups we are not a "culture" or "class" that shares common identity or common experiences outside of our experiences with our diagnosis and ever present stigma but we are still a demographic of people that are one of the most easily victimized. But even still we can't say anything. We can't get mad about it. We can't get sad about it. If we do more than make a meek, polite mention of it than we're just "off our meds" or "being bipolar" or something similar.