I thought your kids were adults? I don't think you have to correct their language anymore. You do not have to stay in an abusive situation to give them some idea of what is right - no matter what their age.
You just have to focus on what you need to make your life manageable, safe, peaceful.
I find it easy to not say anything and then I boil over inside so not sure I have advice that will work with your specific question. Sending you
. Christmas is such a stressful season for so many people and the chaos really goes up a factor or two or three when people that are already having trouble try to deal with the added stress and emotion of the holiday.