The reason the border has been left open during an ongoing massive invasion, despite the drugs, crime, and Covid pouring into the country, is that the Democrat Party wants to displace the American population with people more likely to vote for it. Tucker Carlson explains the situation is succinctly:

Contra the commentary of the tweeter above, this not “white replacement theory”; it is “American replacement theory.” Everyone with a stake in America is getting displaced. It isn’t only whites whose wealth will be expropriated and redistributed to buy the votes of the anarchic incoming hordes.

On a tip from Chuck A.