Illegals have up until now been feeling safe living in sanctuary cities. ICE should be in there terrorizing them daily to convince them to self deport. ICE should be always around making it impossible for illegals to move around safely with out fear of getting snagged.
There are 30 million of these criminal scum that need to be removed. There really isn't a "nice" way to do it. And the fact local law enforcement in these sanctuary states arn't allowed to help deport the illegals or even notify ICE when they got one in lockup just means ICE has no real choice but to go out in to the streets do it themselves.