Liberal policies in San Francisco are inflating California's homeless crisis and driving longtime residents out of the city, former mayoral candidate Richie Greenberg said Thursday.

Appearing on "Fox & Friends" with co-hosts Brian Kilmeade and Ainsley Earhardt, Greenberg said that as the state government has moved farther and farther to the left over the years -- adapting socialist ideals -- the homeless population has only grown.

2020 DEMOCRATS AREN'T GOING FAR ENOUGH TO ADDRESS THE HOMELESS CRISIS IN CALIFORNIA, ADVOCATES CLAIM

"It's just a tragedy now," said Greenberg. "But this is San Francisco. This is not anything new. This is classic San Francisco, where the downtrodden are celebrated and coddled."

"Little by little, we see the whittling away of law enforcement, and the norm now is having the homeless, the drug addicts, and mentally ill roaming the streets," he told the "Friends" hosts.

In the latest effort to combat the growing homelessness in San Francisco, a city resident recently used a plywood wall to block an alleyway known to be used for drug deals and defecation by the homeless. After a few days, the blockade to what’s known as the “Ingleside Path” was removed after several complaints.

City records show the neighbor had permission from the San Francisco Public Works to build the wall, the San Francisco Examiner reported.

Greenberg says that a major culprit is the non-profits -- in tandem with government funding -- that are based in the city who are "getting hundreds of millions collectively" to cater to the homeless community.

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"I believe, and many of us believe here, that they are [all] enabling...homeless to move here, actually," he said.

"So, how could it be that year after year -- even after throwing hundreds of billions into the budget -- that the population of homeless is going up? And that's clearly because others are moving...from other states, other cities, to take advantage of the liberal policies here," he concluded.

"It looks like California is doomed," Kilmeade observed.

Fox News' Barnini Chakraborty and Brie Stimson contributed to this report.