I'm an American who married a foreigner. We're both traditional Catholics. I petitioned for him to come to the U.S. and it was a long process with a lot of paperwork. We're still waiting on his green card status but at this point it may all have been in vain.
The cultural differences started cracks. In his culture, yelling and shouting is perfectly normal, but for me it's scary and he has also yelled in my mother's face. He screams at me to get up and cook but I try to explain to him that he doesn't need to scream at me for me to do things for him.
I lost my job and it's been worse. He is working with his work visa but wants to quit. The work is long but it does pay well. It's been very helpful having him work while I look for a new job. Before he found a job, I supported us financially.
Now, he is preparing to go back to his home country to secure a permanent job position. The pay compared to U.S. money is very meager. He is going anyway and told me he would return when I find work. So this means I have to survive on unemployment and will not have health insurance. He doesn't understand why this is upsetting for me.
He has said I should go with him, but I can't. I have a pet here who is a service animal, and I have a house and mortgage. I also love my home. And I have a parent who is in poor health.
I would be willing to go to his home country in time. But I feel like he is abandoning me. And that hurts.
My thoughts are that he had expectations about America and is disappointed. He hates our health care system. I have had to listen to him tear me down saying I am inferior to him and my culture is inferior. My mother has tried to intervene and is fair and neutral, but now he hates my mother and puts her down to me.
I feel really hurt, it feels like I married a monster. There were signs before but I trusted him.
What can I do? There is no changing his mind, he is going to his home country.

A woman should be able to count on a man.  A man should not be depending on a woman like this.  You're supposed to be his helpmeet.  He's been using you.  I'm sorry.  

Prepare your mind and emotions for a separation of some kind.  

It's either A. enjoy your life of comfort and familiarity and ignore your husband's commands, remaining in your native land, or B. say goodbye to your creature comforts to join your hostile husband in a foreign land where you will likely be destitute.  

an angel of the Lord appeared in sleep to Joseph, saying: Arise, and take the child and his mother, and fly into Egypt: and be there until I shall tell thee. For it will come to pass that Herod will seek the child to destroy him. Who arose, and took the child and his mother by night, and retired into Egypt: and he was there until the death of Herod