I support OP 100% about not preparing the meal anymore and entertaining in her home. If she no longer wants to, she shouldn't have to. I see the bowels issue as a totally separate issue that I would have handled the first time it ever happened by saying "you go. I'm staying". If he pouted, tuff snoggies. That ones on her.
From the beginning, I didn't see OPs H as abusive in any way, or that she feared him. Maybe, maybe, maybe, we'll never know, but she didn't allude to anything like that, yet many jumped on abuse - emotional, psychological, physical. I saw him simply as a man who liked to have things his way, and she just needs to firmly speak up, say NO, leave for the day... whatever. People should stop psychoanalyzing every damn little thing.
My comments are geared toward her comment to her DIL, and the criticism she seems to be taking for it, implying she's shoving the problem off on the next generation of women instead of the men. How do some of you jump to these ridiculous assumptions without knowing the DILs situation OR her H. All I know is that if I was capable of doing it all, decorating inside/outside, cooking for 20, and everything else that goes along with holidays while raising 3 children, anyone can - IF they want to, IF they find some joy in it, IF they care more about the others than they do for themselves. If not or if you no longer do, say so and don't do it. I was at home while my H worked a good 10-12 hours a day. I would have been ashamed to expect him to cook, clean, decorate. And to the smarty-pants who questioned how often must he do the things he does implying they are seldom, how often do the Christmas holidays come around.
I guess what disappoints me with many women is that what they're actually admitting, maybe without realizing it, is that they're incapable of doing anything that requires a little extra effort. I, myself, and most women in my family charged in with I-can-do-anything attitudes, and would be ashamed to admit they couldn't.