Spouse Immigration Laws

Spouse Immigration Laws
My brother, Vance Graham Grissom Jr. (American Citizen) and his wife, Paulette LeBlanc Grissom (Canadian Citizen) have been married for 8 years. Their anniversary is August 31st, 2013. They met there and were married in Canada while my brother was there on a work visa. All of the paperwork they were given was done properly for her to come to the U.S. with him, but one visa (B2) they were never told about and you'd never notice it if you didn't know what you were looking for. This "B2 Visitor's Visa," is stamped in your passport with a 6 month date that you must return by. They were never told about this or ever noticed as the passport was stamped and returned to her with no explanation of the code B-2 or what it meant. Therefore, it got overlooked so they didn't return to visit as it is expensive to return so often.
Then Covid-19 hit and the borders were closed for 2 years! You can't cross the borders if they are closed! Needless to say, now we have a crisis. Paulette flew home to Canada for Christmas because her grandmother had passed away and her daughter had a baby (1st grand baby) on the same day. When she was flying home her layover flight was in Toronto Canada and she went through customs to have her passport stamped and they determined she hadn't been home past the 6 months date and detained her at the airport stranded hours from her family in Halifax. They told her that her marriage license looked fake!
They proceeded to tell her that she is banned from the US for 10 years!!! This is extreme! It is morally wrong and we feel that each case should be looked at individually. Also, we ask that there be leniency in special circumstances due to health reasons or national crisis' such as the Covid-19 pandemic when the borders are closed. We are asking that there be stipulations added to foreign marriages for spouses that have been married for 5 years or longer and include any children they may have prior to marriage that are minors.
They are both traumatized by this and my brother is working diligently to bring her home. Even with an Immigration lawyer it could take 3-5 years to get her back to the U.S. He works here, they have a home and animals here, family, and she is disabled so my brother is her sole caretaker! All of her medical doctors are here and her monthly medications are presrcibed here! You can't send prescription medication across the border! We need your help to get Paulette home to the U.S. as quickly as possible! She is very sick and has infection in her face and needs surgery quickly before the infection gets into her bloodstream! PLEASE help us get her home! Thank you all for your support! We appreciate you!!