The problem with Barton’s so-called Jefferson quote? Well, Jefferson wasn’t talking about immigrants. He wasn’t even talking about ships coming to America from other countries. He was talking about the exact opposite — ships that were sailing from America to Europe!
The quote that Barton butchers so completely to make it say the exact opposite of what Jefferson was actually talking about comes from Jefferson’s 1805 message to Congress (what we today call the State of the Union address).
At the time there was an intense fear of yellow fever in Europe, with recent yellow fever epidemics, particularly devastating in Spain, having killed thousands of people. The obsessive fear of the disease among Europeans, which was causing ships sailing into European ports to be quarantined and their crews and passengers to be subjected to absurd medical tests, was described by Washington Irving in his Notes and journal of travel in Europe, 1804-1805, in which he recounted what he experienced upon his arrival at the Sicilian port of Messina in early 1805: