The homeless man tackled and zip-tied by onlookers who say he was trying to start fires with a blowtorch near a Los Angeles wildfire is an illegal immigrant who will likely be protected by California’s sanctuary city status, according to sources.

The suspect is Juan Manuel Sierra-Leyva, a Mexican national who is in the United States illegally, sources told The Post.

He was chased and taken down by residents of Woodland Hills after they allegedly saw him torching old Christmas trees and debris on fire with what one resident described as a “flamethrower” soon after the massive wildfire began Thursday.