My leftist friends claim that those coming in from Canada are more dangerous than those coming through the southern border..... more terrorists, that is.
How does one counter that claim?
They are relying on two, incomplete pieces of data.
1. More people on the terrorist watch list have been apprehended crossing the Canadian border.
2. Certain classes of drugs, like opioids come more from Canada.
Those are incomplete because they are a very small slice of a larger pie. The terrorist watch list, for example, doesn't account for the complete number of criminals that enter, at that, it is a tiny fraction of a tiny fraction of, for example, the number who come in through various street gangs or organized crime.
Opioids are not the only drug to come across. Cocaine for example, mostly comes across the southern border. Heroin, through ports (hidden in shipments). Meth is mostly domestically produced. Pot is from all over, but now that it is being legalized quickly, it is become less of an issue on either border.