Hey Rod........
You're the one who made the statement in your post there was no correlation between ILLEGAL IMMIGRATION and crime. And yes, even though I'm not a rocket scientist, I've been around enough to know about the other gang problems. You really going to back track in your DeLorean at 88 mph to the 19th and early 20th century in defense of what's going on today in this country? Puhlease. RK made the point for me as I was writing.
One other thing genius, don't even try to school me in gangs. I've dealt with all kinds, up close and personal for more years than you realize. And what I said sticks. Mexican Gangs are the largest in the US. And YES, THEY ARE A MAJOR PROBLEM and threat to the safety and security of every law abiding citizen in this country.