I think counselling is a good place to start. You and your husband grew up in different families and have different ideas of what is and is not OK within a family structure. That's normal. You just have to find a compromise that works.
I also think you really do need to deal with your issues. I only have 2 kids, but otherwise I've been in your shoes with children being my life, my husband rarely able to help out (long hours rather than nights, but the same result) and my own issues with anxiety and depression. In that state, it is hard to get along with anyone, let alone in-laws you already dislike.
Personally, I would have made a courtesy appearance at the party for the sake of my kids, then moved on. You have to choose which hills to die on, and this one wouldn't have been mine. It was yours though, and that's your choice, but you do have to see it does put your husband in an uncomfortable situation and that's a big part of what the two of you need to work through together. He may not even understand exactly what it is you want him to do and why. My husband and I had similar issues around his parents for quite some time and, to him, it didn't seem worth the conflict when I could just ignore the negative things and we only saw them every couple of months. To me, it was him refusing to stand up for me but to him it was refusing to make a molehill into a mountain. Once we understood each other's positions, and I understood he did support me just in a subtler way, it got a lot better. I found I liked my in-laws more too.
The hardest thing about marriage, in my opinion, is blending two different sets of values, beliefs and traditions into one coherent whole.
I also think you really do need to deal with your issues. I only have 2 kids, but otherwise I've been in your shoes with children being my life, my husband rarely able to help out (long hours rather than nights, but the same result) and my own issues with anxiety and depression. In that state, it is hard to get along with anyone, let alone in-laws you already dislike.
Personally, I would have made a courtesy appearance at the party for the sake of my kids, then moved on. You have to choose which hills to die on, and this one wouldn't have been mine. It was yours though, and that's your choice, but you do have to see it does put your husband in an uncomfortable situation and that's a big part of what the two of you need to work through together. He may not even understand exactly what it is you want him to do and why. My husband and I had similar issues around his parents for quite some time and, to him, it didn't seem worth the conflict when I could just ignore the negative things and we only saw them every couple of months. To me, it was him refusing to stand up for me but to him it was refusing to make a molehill into a mountain. Once we understood each other's positions, and I understood he did support me just in a subtler way, it got a lot better. I found I liked my in-laws more too.
The hardest thing about marriage, in my opinion, is blending two different sets of values, beliefs and traditions into one coherent whole.
),12-step recovery program, marriage ending, and a total lifestyle change. Through it all, I would joke to others that I was the happiest depressed person they could ever meet. Not sure how I survived it all, but I did have to tell myself that I could get through anything for a 24 hour period and that things would get better. Everything passes, the good and the bad.