“What is it with central/South Americans and the knives and machetes?”
Central America is home of the Cannibal Cultures of the Aztec/Mayan Indigenous Peoples.
Butchery and cannibalism are deeply ingrained in Central American culture.
“Culture is determinative”.
For that reason, Central Americans and Muslims really can’t be American citizens. They simply can not internalize American behavioral patterns, mush less the Founding Documents.
The core beliefs both Central Americans and Muslims are raised on are antithetical to American core beliefs and are also antithetical to American core beliefs.
“Culture is determinative” - accept that reality, because it may keep some alien from hacking you to death.
That's because they're part of what Carroll Quigley called the Pakistani-Peruvian Axis.