Just for a brief glimpse into the major arguments
Was Clovis the first dominant toolkit within the United States?
Was Clovis so widespread due to the high mobility and caching behavior of people who used them or was there a robust trade network?
Are pre-Clovis sites legitimate or are the dating methods too imprecise, resulting in Margins of error that make them coeval with Clovis?
Was the FIRST and/or MAJOR peopling event via the coastline or the ice free corridor between the cordilleran and laurentide ice sheets?
Did megafauna go extinct primarily due to overhunting or due to environmental factors?
Did the coastal migrations do big game hunting at sea on skin boats or did they simply rely on shellfish and kelp before swapping back to big game hunting on land?
Was there a true Beringian Standstill?
How do the folklores of modern tribes tie into potential peopling events in prehistory?
How do the linguistic implications of modern tribes tie into potential peopling events?
Did Clovis hunters really just use spear hunting or did they use nets, bolas, and other implements that show no physical evidence due to higher organic concentration in their construction?
I could go on.