Who’s assuming “unvetted”?
All those "good people" -- good, based on what? Hypothetically, there are some people who were induced to cross thousands of miles of Mexico to push their way across into the US, but all we know about are the cop-killers and gangsters, because they've been identified. None of them have any *right* to cross the border.
How are they vetted unless they cross the border illegally? Are you OK with this? On the contrary DHS cited several gang members and criminals from over 20 different countries travelling with the “caravan” Are you ok with letting even ONE of these criminals on our soil???