[QUOTE=Diogenes the Cynic]
I admit that was over the top. I apologize. My initial emotional reaction was very averse, but honestly, it wasn’t the sexual aspects that bothered me, it was the acting out in front of the kids, in particular (like I’ve already said), it’s the modelling of male-female relationships to children as being unequal and giving the impression that women should be subordinate to men. I don’t think that children are capable of grasping the idea that it’s role playing (especially if it’s role playing that never gets switched off).
For couple who don’t have kids, I don’t think it matters (although I admit to wondering what either partner gets out of it).
[/QUOTE]
Thank you for the apology - I understand reacting strongly emotionally, and realizing afterwards that maybe you were a wee bit over the top. 
As to your continued concern for the children, I think I have given all the rational explanations I can, so let me add an anecdote from my own experience, to try and help. I have a couple of friends, who are a married, polyamorous, kinky couple. She is submissive to him in every area; he “owns” her, and they are very much in love. They have two children, aged approximately 10 and 8. The older is a boy, the younger is a girl. On one occasion, I saw the boy swat his little sister on the butt, because he wanted her attention. She turned around and poked him in the chest (fairly hard) and said “That’s my butt! Leave it alone!” He immediately looked chagrined, and said “I’m sorry - come play with me now?” And they toddled off to do some mysterious kid thing.
Yeah, kids pick up things you don’t want them to sometimes. But it’s also perfectly possible to teach them about boundaries and consent and appropriate behavior in social groups, if you’re willing to put as much work into it as you do into your dynamic. Responsible kinky parents often have fairly open conversations with their children as often as they think is necessary or feasible, to help them understand that not everybody is like Mommy and Daddy, and that it’s Not Okay to treat everybody like that.
On preview: no, Sarahfeena, she doesn’t have a safeword. But not having a safeword doesn’t mean she can’t say, “Seriously, guys, quit it!” and be respected. Couples who do not use safewords almost invariably have a plethora of other (sometimes better) ways of communicating, so that the submissive is able to get across when s/he’s had enough. Not having a safeword is not in any way equivalent to making her unable to say no - it just means that she has to communicate her distress in other ways.
As to not believing one adult should ever be in charge of another - I can’t help you with that, and I’m not going to try. I disagree, obviously.