He viewed him as a patriot which relied only on the political support of an average citizen.
Mary Ellen is demonstrating the confirmation bias.
The confirmatory bias or also called myside bias is the inclination to interpret, to search for and recall data in a way that confirms one preexisting hypothesis or belief. It happens from the direct influence of desires on beliefs.
Answer:
Try talking to them. See if they really want this or not, and try to convince them to get out. If it's a serious problem including abuse contact your police department.