The Bay Area may be alarmed and disgusted by Arizona’s tough new anti-immigration law, but the rest of the country appears to support it in a big way, providing more evidence of the nation’s historic shift to the right over the past year. According to a new McClatchy-Ipsos poll, 64 percent of registered voters nationwide favored the new law, which requires Arizona police to demand identification from people they suspect are in the country illegally. Most Americans, apparently, have no problem with racial profiling.