Social acceptance for BDSM? It won't happen in my lifetime.
It took me a long time to reconcile myself to it, and I enjoy it! I will never expect those around me to accept it, so I certainly won't tell them about it.

As far as having a partner who isn't into BDSM and you are, that is difficult. For many years I didn't speak to my husband openly about my feelings because I was afraid to let him know my
"perversion." We dabbled in it lightly from time to time, but nothing serious. After 28 years and after accepting this in myself, I let him know exactly how I felt. I was lucky. He accepted it, but I would have stayed with him even if he hadn't. There are more important things than specific kinds of sex in a marriage.
If you aren't a 24/7 Dom or sub. giving up that need in your relationship is not that big a sacrifice.
If being a Dom or sub is an essential part of you, then that's another story.
If you find someone who enjoys it as much as you, and also have the other qualities you seek, then you are truly lucky.