My apologies-I am referring to Sanctuary Cities and states which offer sanctuary to Deportable Aliens.

 I DID write this 2 hours ago re this specific thread "More like encourage that illegal alien sanctuary policy and tell citizens again how it protects them from criminals who shouldn't be here by law." Apparently my statement was not clear so again, my apologies.

Regarding this by you "...not all illegal aliens are criminals."
Actually all Illegal Aliens are criminals. All of them. Some are felonies, some are misdemeanors. None are infractions

Clarifying:
 
* Aliens ordered deported/ovorstay a visa become criminal the moment they defy deportation/departure orders.
 
* Illegal aliens walking on US soil sans border inspection are also criminals. 

* Here is multiple sanctuary policies for criminal aliens, who are not immigrants-including 'undocumented' immigrants.

Updated July 2017 - Maps: Sanctuary Cities, Counties and States
https://cis.org/Map-Sanctuary-Cities-Counties-and-States