Yes I found several very scholarly left wing articles to that effect.
I also found this from the police.
“The tension between sanctuary cities in the U.S. and the federal government has escalated in recent years. Arguments in favor of sanctuary cities include the concept that the removal of fear of deportation allows undocumented immigrants to feel safe reporting crime, leading to statistically lower crime rates in some of these cities. However, while the benefits for those who are on the path to obtaining legal citizenship are numerous, the fact remains that these sanctuary cities can still obstruct departments such as Immigrations and Customs Enforcement (ICE) from removing unwanted criminal offenders from a country in which they are residing illegally. Here’s a closer look at sanctuary cities pros and cons.
In 2018, the U.S. Justice Department sued the state of California for its refusal to comply with detainer requests and other protocol put forth by ICE. For its part, California has held to its sanctuary statutes fiercely, promising illegal immigrants asylum and encouraging them to integrate into their communities, to feel safe and at home. However, the Justice Department and the Trump administration took issue with this, stating that these sanctuary laws actually put undeniable strain on federal law enforcement and ICE by not cooperating. In the efforts of ICE to remove violent criminals and multiple offenders from the country, many sanctuary cities are making this next to impossible. As a result, the free reign of violent criminals who have been released back into the public after local law enforcement refused to complete an ICE detainer request for further investigation has resulted in crimes that could potentially have been prevented.”
Later on in the same story.
“ The root of the issue at hand here is an absence of cooperation between the levels of law enforcement. Digging further, the idea of loyalty to the idea of open arms and welcoming those fleeing persecution permeates those who have dug in on the side of the fence that wants to block ICE from making raids and arrests in sanctuary cities. At the very least, many sanctuary cities have put protocol into place that prevent employees from having to inquire about a detainee’s citizenship status. In other cases, local and state law enforcement can refuse a detainer request submitted by ICE for a detainee who has piqued interest for further investigation. ”
The headline is “ KEEPING AMERICA SAFE: HOW SANCTUARY CITIES CAN DO MORE HARM THAN GOOD”. Sanctuary Cities: Pros and Cons
If the point is that sanctuary cities are somehow safe?
We have a problem with illegal immigration. Sanctuary cities it seems to me are an attractant for illegals…we’ve lost over 100000 Americans for example to illegal drugs coming across the southern border. Sanctuary cities are somehow safer…sounds like an excuse for illegal immigration to me.