It's funny, I know many women active within the BDSM community. They are, for the most part, absolutely scrupulous about boundaries, consent and appropriate behaviour.
Speak to them, and they'd tell you how a strong, clear and thorough grasp of boundaries, clear communication, and informed consent are the absolutely fundamental basic condition to involvement of any form of BDSM. Dismissal, fudging, or attempts to minimise the importance of consent is usually picked up on quite quickly and hugely frowned on.
But of course there are predators and manipulative arseholes within the BDSM 'community', too. As you'd expect, predators are highly likely to target this type of community and try to erode the boundaries within it. Plenty abusive males are of course going to be keen to use any opportunity to access victims.
'safe, sane, and consensual' used to be the mantra. Don't seem to hear it so much anymore. Much more of the 'don't kink shame' and 'love is love' and 'pearl clutching'. I wonder why?