**ETA: My Mom, is a Widow as well. She is not rigid, as your MIL about any Holidays, but she is older than your MIL.
So, age and being a Widow... is NO excuse.
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- You have been sucking it up for the past 5-6 years.
- She has to have Thanksgiving Day. Your Husband has to, or chooses to, please his Mom.
- Most of this, seems to be about your Husband's family/In-Laws... and Thanksgiving and what they want.
- Again, you have been doing this since your child was born.
- PLUS, your Husband/and you, are the only ones that live close to her, AND you/your Husband, helps her with finances/appointments/household logistics and MORE.
- So, you/Hubby are seeing MIL, much more, other than only on Thanksgiving plus you visit her once a month etc. AND do her household/finances for her.
So, your Husband and you by default, are doing a TON for her. 12 months a year.
- Then, you have your own family. Who live 2 states away, and per logistics it is hard for them to travel to your MIL's home because they live in the opposite direction from you. AND your parents also have to travel between you and your sister ANNUALLY and also host Thanksgiving themselves. Which is normal. Normal.
- BUT, your Husband/his Mom, are expecting YOUR family to do all the traveling to her house and to amend their annual travel plans/logistics/personal family obligations & travel, to go to your MIL's home for Thanksgiving. But this is not, doable. For your family. And this too, is normal. Each side of the family, has their own family to do things for too.
-- BUT the bottom line is:
Your Husband just wants to please his Mommy, and expects you to too.
BUT, he does not consider your wishes/feelings nor your family and their own logistics/hardships/feelings... about the holidays, nor your NORMAL wishes for seeing your own family... with your child... for their Thanksgiving, too.
AND the thing is: your Husband has to realize... that he is married. As such, there is a Wife to consider too, and HER SIDE OF THE FAMILY, too. Because... HE is a PART of HER, family too and thus as such, has obligations and familial obligations/responsibilities to HER side of the family... as well. This is what being married is. And as it is... it seems you only get to see your family, during Christmas when you parents are not alternating between you and your sister and it is your turn to see them when they come to visit you. So at best, you only see them every other year, for Christmas????
That is hardly, anything.
-Meanwhile, you and your Hubby & your child see your MIL every month. Plus for the past 5-6 years since your child was born, every Thanksgiving at MIL's house. So that is a lot.
- How often... has your own family... seen you or their Grandchild? How often, has your sister seen her nephew? For how many holidays a year?
How would your Husband feel, if you had to help financially and with household logistics, for your Mom?
- I get that his Mom is 70, and a widow and what not. But your own parents... must be aging as well. And one day, they will not be able to visit or travel so much. And meanwhile, you HARDLY get to see them, with your child.
And again... your Husband is married, has a Wife and as such, HE as a man and as a Husband... ALSO HAS familial duties and obligations, to his In-Laws too. For, his wife. He is a part of 2 families, now.
And not only his... family. He is not the only offspring of his Mom, either.
So to me, your Husband can go to Thanksgiving to his Mom's.
You can go to your family's with your child. Because they hardly get to see you/your child at all, much less for Thanksgiving. And only on alternate Christmas's every other year at your house. That is not much.
To me, you have done a lot for your In-laws and are very understanding.
And there is nothing wrong... with wanting to see your own family, no matter what holiday it is. Or even for a non-holiday trip.
You do not seem to make demands... on them or MIL.
And just this ONCE... I don't see why you can't see your family for Thanksgiving.
And also because, as you said, your family has their own traditions TOO. It would be nice for your child to see that TOO. (my opinion).
And it would be nice, for your child AND Husband, to make a point of seeing them, TOO. Since you all... seem to hardly see your own parents/family, at all.
Your Husband... ALSO has a duty... to make face-time and trips... for your family and parents, too. That is what a Husband and Man, is.
But your Husband seems a bit of a Mama's boy.
Your parents are aging too.
And, you HAVE BEEN already... sucking it up for MIL and Hubby.
There is NOTHING wrong, with your request to see your side of the family. Just this once.
YOU have made tons of compromises already.
What if your parents/family needs all that help your Husband gives his Mom?
It can't be only one sided.
I'd think, it would be NICE to see your parents and sister, all at one time... together for a family gathering, PLUS with your Husband too and your child all there at your parents.
You hardly seem to get to do that.
You hardly seem to get to see your parents, at your parents house, at all.
Your parents are the one's that seem to have to travel to see you or your sister. I am sure, they and your side of the family, would LOVE to see you/your child/your Husband... all at one time at their family gathering.