[gregjor]

As other commenters point out, you actually fear deportation if you lose your US visa. Getting laid off might cause that to happen.

Talk to a competent immigration attorney so you understand your options. The US offers a lot of visas.

A company circling the drain and going through rounds of layoffs will get to you eventually. If the company doesn't have huge problems that make you think it will lay everyone off and go out of business or get sold for IP, do what you can to keep the job. Make yourself indispensable. Do something no one else wants to do. I kept a job through three rounds of layoffs that took people senior to me by making myself the only person who understood the product database. Another guy at the same company knew the build process better than anyone else and survived as long as I did. We both had some time and runway to find other jobs instead biting our nails waiting for the surprise Friday afternoon meeting with HR.

I can't give specific advice, but you need to figure out how to keep your job, and that may mean stepping out of your comfort zone. One thing for sure: worrying and living in fear of something you may not have a lot of control over won't help, you need to take control of your life.