Dear OP.
Your posts are so concerning. The more I read, the more I think you need IMMEDIATE help. These people sound physically and emotionally dangerous.
Your Employer, The GP you saw in 2018, your therapist are all so concerned about what you are enduring.
Please stop thinking you can continue to put up with it for another 12 months to finish your thesis and go as soon as you safely can. Do you really think these abusers will actually let you finish your thesis and get your PhD if they won't let you even take a meeting?
He is clearly so jealous of your education and your success and he demonstrated that when he punched you in the face and cracked your computer screen because you had an important zoom meeting.
From what you've described,They will do everything to stop you because it would raise you up another level and might make it easier to escape them.
The constant pressure to get pregnant is concerning. They know if you are pregnant/have a child they can use that child to control you. Don't let them be in a position to do this.
You can't wait 12 months. It is not safe.
Your employer said they would get in a car and come and get you.. why don't you ask them to? That's all you have to do to get to a place of safety and help you find a solicitor to help with visa and find a way to protect yourself. You've known them for 10 years and say they are lovely.
Your therapist is distressed about your suffering.. Can't you ask them to help you get out? Ask them to find you organisations that could help. She could at the very very least report it to GP and ask them to help, reminding the GP not to let your husband know. Talks with your therapist over time is evidence that could be used to help you get assistance and may help you qualify a visa, especially with the recommendations from your kind employers.
The GP in 2018 wanted to help you but you kept telling them you are fine.(also evidence) YOU ARE NOT FINE. YOU ARE IN A VERY UNSAFE ABUSIVE SITUATION.
PRIDE
You say that pride prevented you previously from accepting help from your employers and others. Don't let pride stop you! I think you may be confusing pride with shame - that you are in this situation. But this situation is not your fault, it is the fault of the mad people inflicting this suffering on you and the shame lies with the abusers. They are criminals.
Take pride instead in your strength, your achievements, your intelligence and now take pride in the fact that there are people who care enough to help you, because they think you are a wonderful person who shouldn't be treated like this.
That is not humiliating, that is something you should be very proud of, they recognise your worth and want to save you. Take pride in having the courage to take that leap (because none of this is easy and you are already showing such courage and endurance) and then take pride in having the courage to admit you need help and accept it to free yourself forever from these horrific abusers. Then you can look back and be proud of escaping such a difficult situation and look forward to a new life.
Please start talking to people in real life now, accept the help that is offered, don't worry about donating clothes or selling electronics, all you need to finish your thesis is safety, peace and your own very intelligent brain so please don't wait 12 months.
I am praying for your safe and successful escape from this awful situation.