My wife came over with a green card shortly behind her. She’s smart as a whip with a masters degree and knew where she wanted to work. The truth of the matter ended up being that work outside the US is not work to most employers and degrees outside the US are not degrees to most employers. It took a lot of convincing.

She ended up working at Dollar General for 3 months and then got a customer service job and then got a job doing estimates for large scale insurance and after almost 3 years, she finally got to where she wanted to be. Your husband will likely need to “do his time” at any minimum wage job to establish that he’s employable.