Interesting point, statistics . Being illegal, would be a big incentive to avoid having a 'second strike and you are out' situation exposing you to ICE.
Sadly there is home grown crime, but why increase the total crimes committed by allowing illegals to add to that?
Local US police do not want to enforce federal immigration laws, because it would hamper their work in combatting crimes committed within the illegal migrant populations, much of which goes unreported anyway.
In Germany pitched battles with death and injuries are fought in the streets by migrant clans on a daily basis; there does not a week goes by that young females are not raped, murdered by "New Germans" .--- very sad.