Trying to immigrate

Hello, iam a black woman,I have a nonbinary white partner. We are scared of the future for the US currently. My partner was denied their passport ( i got mine days before the election) and we don't know why.

My partner has roots from Poland, their ancestors lived their and then escaped to the US during the holocaust.

Does anyone know what paperwork they would need to get a passport there?

Also if I can apply for citizenship/passport there while still living in the US ?

Or should we try and get VISA'S, i still believe they wouldnt be able to travel with their passport being denied. We need alittle help.

Also we are dog groomers so we don't know if this is a large industry in poland.