. Living 20-50 people in a single home times an unfathomable number of homes in neighborhoods across America (someone on the coast posted in one of the earlier threads that they were breaking in unoccupied residences and living in boathouses)
. Refusal to adapt to the English language and forcing some school districts to think of hiring Mexicans from Mexico to teach the children of illegals in American schools
A couple of good ones to add....thanks!