You think it will have an impact on legal immigrants. Fine, but many people, including myself, disagree. These people are the ones cheering the law. Why would they cheer for the effects it has on both legal and illegal Hispanic immigrants, if they don't think it would have any effect on legal immigrants in the first place?In the end, this is a law which makes it hostile towards certain sects of society in such a way as it would cause them to flee. We don't know how many were legal and how many were illegal; but you can't dismiss the impact you may have on legal citizens due to the effect you could have on illegals.
And you didn't show me where any conservative cheered running Hispanics out of town without regard to legality.