wasnt saying bias is necessarily a bad thing. if it is fueled by personal experiences then i feel a person has every right to be biased. its when someone sits around saying 'i dislike ******** because my daddy told me they do ***** and *****.'
Folks who can't speak the language generally don't earn much.
Hispanic folks who can't speak the language are generally illegal, due to our proximity to Latin America and the ease of which persons from this area can get here. Russians, Chinese, etc. can't swim here, so it is less likely they are illegal, but not impossible, as those being smuggled on freighters and cargo containers attest.
Illegals earn less than even legal immigrants w/ poor English comprehension, for the reasons of high-turnover to avoid deportation, exploitation, ignorance of the law, etc.
Gang-members seem to have an inability to follow the law, as an understatement. Gang-members cultivate a "look" to identify themselves to one another, possibly the community at large. They certainly like to "tag" their territory. They also have money since legal means to earn money are no concern.
Gang membership isn't limited to the US. There are Mexican, Jamaican, Columbian, etc. gangs.
Those who look like they are A) gang-members and B) illegal immigrants possess a dichotomy. Illegals don't earn much (legally) and gang-members break the law, but do have money garnered through illegal means.
I see nothing irrational in my concern and suspicion about the legal acquisition of their firearm and probable intent for its use.