The two ranchers that were killed by the cartel in Arizona and the countless damage to property, robberies,etc in border towns needs to be fixed. The cartel even put dynamite on a Texas dam to try to flood out people. In any other scenario, these people would be called terrorists.
You can say all you want that that it would lead to profiling the fact is the towns and cities need help.
Arizona was trying to help their citizens. How would you suggest they do it?
Its an answer the federal government doesn't really want any part of except with shallow words that mean nothing to the residents.