it's not necessarily racist...and 'fascist' is being over used as a label these days.

What it is, is a STUPID law. Yes...everyone knows that 99% of the targets of this action are illegal Mexicans. 'Racist' is a term that suggests that opposition to a group is simply because of DISLIKE of their ethnic background, and the 'official' purpose of the law is to discover & control people based on their citizenship status. Too many illegals?....find them and stop them.
What makes it stupid is the idea that one CAN 'have probable cause' to stop someone based on 'looks', 'dress', 'behavior'...etc. That, obviously, will cause much harassment of perfectly legal folks.....who, by default in that area are often brown-skinned Hispanics.
It's a fine point, but it is de facto a discriminatory law, not a 'racist' law. It is an UNFAIR law, a useless law, a law which is internally flawed, a law which no police officer will be able to apply sanely. The law should be, and probably will be, invalidated by the courts.