I have friends that work for Los Angeles County Sherriff's department, and I have access to the incarceration rates, by race, in the jails. A very high percentage of them have Hispanic surnames here.
By my observations, it seems to permeate their culture, regardless of which side of the border they are on. I suspect it has to do with Indian blood, Indian culture, and Indian giving being acceptable in their culture, but not in the white man's culture, back in the beaver pelt and fur trading days.
YMMV, you may form your own opinions contrary to mine... but every single car accident that I've been here in Los Angeles, five of them, rear end jobs, has been by an uninsured Hispanic, that did personal damage to my truck, or my trailer, and definitely my lower back, which has never been the same and a constant source of pain since then. So yes, the ones involved with me have been criminal.
That's just the way the statistics have played out here in the San Fernando Valley, in my case... again YMMV.
As a result, I have a distinct opinion formed about them due to the losses I have incurred, as being thieves, and irresponsible. Not all of them, but enough to create, for me, a stereotype such that I trust, but verify, every single time.
It has nothing to do with race, it has to do with tribe. And it all goes back to indian givers, IMHO.
I've hired them for my construction crew, and I've hire day laborers also. Not by choice, but to stay competitive. I've had a lot more problems with hiring them and material losses on the job. I'll leave it at that.
I don't think it matters which side of the border you are on, if they are around, theft can be a bigger problem than without them being around. Just my lifetime observations, with being around the poor ones.