In some states yes and among some voters yes. But the immigrant issue is largely sustained by right wing media and inherent racism. How do you know which of your neighbors are using social services? And how do you know whether they are immigrants or not? And how do you know if they are immigrants who complied with current laws or not? Most people wouldn't and don't know these things from their personal experience. They are being saturated with this message from the media, and then assume it fits most of the brown people they see in their community.