Who is the worst person that someone can associate with you? If you are one of the 50,000 undocumented immigrants living in Philadelphia, the answer to that question is probably Juan Ramon Vasquez.

Born in Honduras, Vasquez was deported from the U.S. in 2009. He came back, this time to Philadelphia.

In 2014, Vasquez was arrested by Philadelphia police for aggravated assault and was released even though Immigration and Customs Enforcement (ICE) asked the city to keep him in jail due to his immigration status. Because of Philadelphia's sanctuary city policy, the city only respects such requests when signed by a judge. In Vazquez's case, ICE failed obtain the signature.

>> READ MORE: Fox News host Laura Ingraham slammed over immigration comments involving Philadelphia

This year, Vasquez was arrested again after raping a 5-year-old family member. He is currently serving an eight- to 20-year sentence.

For conservative pundits, Vasquez's story is proof that sanctuary cities expose their citizens to heinous crime.

On Aug. 9, Fox News' Laura Ingraham went on an anti-immigrant racist rant, in which she spent several minutes talking about Philadelphia."Check out what happened courtesy of Philadelphia's refusal to cooperate with ICE detainers," she said almost victoriously as an introduction to Vasquez's story. "This is an unspeakable act of evil that should have never occurred and never occurred on American soil," she continued, before calling Mayor Kenney "an embarrassment" and "a disgrace" for supporting the city's sanctuary status and calling on voters to vote him out of office.

But if Ingraham and other conservatives genuinely care about crime, there is good research to suggest that they should support more immigration to the U.S., not less. Here are some highlights:

But wait, argue those who oppose sanctuary cities: Even though most immigrants are unlikely to commit crimes, sanctuary cities attract and protect the worst immigrants and put American-born citizens at risk.

The evidence does not support that proposition either:

Juan Ramon Vasquez's crimes are heinous, but he is the outlier, not the norm.

Any of us could be associated with someone who enrages us and embarrasses our community.

Any white man could be associated with a mass shooter. Any police officer could be associated with a cop who killed an unarmed black person. Any soldier could be associated with the prison guards in Abu Ghraib. And any woman could be associated with Laura Ingraham.

But we constantly hear that these comparisons are not appropriate. Mass shooters are "lone wolves," and killer cops are "bad apples."

Why don't undocumented immigrants get that benefit of the doubt? Why if one undocumented immigrant commits a crime, is the message that all undocumented immigrants are criminals?

The answer has more to do with the color of their skin than the way they entered the United States.