Former ICE Director Tom Homan responded Tuesday to 2020 presidential candidate Julian Castro calling for a "young, vibrant workforce," partly made up of immigrants.

"If we don't get this right, 20 or 30 years from now we're going to be begging immigrants to come to this country," said Castro, whose brother Joaquin is a Democratic congressman from San Antonio, Texas.

Castro, who served in the Obama administration as HUD secretary, called for a "21st century Marshall Plan" for Central America in order to stem migration by families from countries like El Salvador, Honduras and Guatemala. He called for a system of "compassion over cruelty."

Homan said on "America's Newsroom" that Castro's brother and other members of Congress must fix the laws and create a guest worker program if the Labor Department can show the need for such a policy.

"Don't ask law enforcement, CBP and ICE to turn their heads and not enforce the law. If you don't like the law, then change it," he said.

Homan said the current system incentivizes criminal organizations to smuggle people over the border. He told Sandra Smith that the influx of migrants at the southern border is the worst he's ever seen.

Watch the full interview above.

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