I wish they'd quit stirring in the legal immigrants by lumping everyone in as "migrants". Are they all still migrating? If not, they are immigrants. Are they here legally or illegally?
Every ILLEGAL immigrant is guilty of a crime. They are here, after all, illegally.
Q.E.D.
Their individual resume of criminal behaviour may or may not continue past that, but for illegals, 100% broke one or more laws just by being here. It's a pretty high crime rate for any demographic, and I believe that it takes first place.