The Reform UK leader warned attempts to "smash the gangs" will fail because "there will always be someone to fill the place" of those arrested.
Mr Farage also admitted French interior minister Gerald Darmanin "has a point when he says it's Britain's fault because of the generosity of our benefits system".
He added: "That is why people choose to leave France.
"I think it is safe to predict that even more migrants will come than have come over the course of the last four years unless we have a radical change of policy."
Tory leadership frontrunner Robert Jenrick said that without the deterrent of Rwanda, it is "open season" for the smugglers, adding the Prime Minister and Home Secretary have "surrendered" to the gangs.
Reform UK Mr Farage told the Daily Express: "This government's promise to smash the gangs that organise these crossings will never, in my opinion, work. The truth is, they don't have any realistic plan at all. If a gang smuggling migrants across the English Channel can make up to €2million a week, it doesn't matter how severe the penalties are.
"There will always be someone to fill the place of those who have been arrested.
"In the case of Labour, the promise for a new Border control boss with extended powers has not yet resulted in anybody being appointed.
"It gives the impression the Labour government doesn't care about illegal immigration and simply hopes that the problem will go away. Well, it won't. And in fact, it is only set to get worse."
This story is from the {{IssueName}} edition of {{MagazineName}}.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber ? Sign In
This story is from the {{IssueName}} edition of {{MagazineName}}.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber? Sign In
Wicked! Erivo's Oscar nod
Star's best actress nomination for Wizard of Oz prequel
Comic left £6.4m to his wife
COMEDIAN Barry Humphries - famous for creating Dame Edna Everage - left a £6.4million fortune to his fourth wife Elizabeth.
BRUNO GIVES RUBEN BIG LIFT
Captain rescues Amorim with fine last-gasp winner
Samsung unleashes AI tech in battle with Apple
SAMSUNG has launched its new artificial intelligence powered phone series, the latest salvo in its ongoing battle with Apple for global market dominance.
Brewer's fears of a recession
BREWDOG co-founder James Watt has hit out at Chancellor Rachel Reeves for causing huge \"economic pain\".
PEP'S EMPIRE IS FALLING APART
Guardiola now looks broken
Familiar Patten for duo
WIMBLEDON champion Henry Patten claimed his doubles team are proving they are \"one of the top pairs in the world\" after reaching a second Grand Slam final.
Walker makes move to Milan
KYLE WALKER has completed his loan move to AC Milan - but he may have to wait until next month to make his debut.
10 pints driver left victim an amputee
POLICE confront a drink-driver who drank 10 pints before hitting a car head-on - leaving one of the accident victims an amputee.
PALLADIUM FLAW SHOW
World's most expensive jumps horse struggles to woo critics