So from the looks of it and the following research, It is my legal right to return to Poland, with a Polish passport ( weather EXPIRED OR NOT )
In theory.
In practice, expect questioning and possible secondary inspection.
But for my to fly internationally from the USA to Poland with that expired polish passport, there might be some trouble but I should be able to do it. I have other forms of id as I stated and the USA green card,( which is valid and not expired) .
There's no guarantee that the airline will accept it.
All the fear mongering aside, I should be able to make this trip, yes? Thank you
If you want to risk being turned away at the airport, then yes, you might be able to make the trip. You won't know until you actually get to the airport as to what they'll do.